Modern Russia and The Soviet Union: Stalin :: Russian Russia History

Modern Russia and The Soviet Union: Stalin Modern Russia and The Soviet Union: Stalin's character was the main reason for his rise to power Stalin was born as Iosif Vissarionovich Dzhugashvili on December 21, 1879 in Gori, Georgia. He grew up in a mountain town of about 5,000 people. He was the third and only surviving child of Vissarion Dzhugashvili and Catherine Geladze. His father used to drink and beat him and his mother; this made Stalin very cold hearted. A friend commented on his behaviour, "Those undeserved and fearful beatings made the boy as hard and heartless as his father". His father died in a brawl when Stalin was only 11. Stalin was enrolled in the village at school at the age of eight. He was an intelligent student and was top of his class. He read many books, which glorified Georgian's past. Georgia was an independent country until the Russian Tsars conquered it. One book that had a deep affect on Stalin was a book similar to that of Robin Hood. His name was Koba and he hated the Russians and avenged their crimes against the Georgians. His acts were very ruthless and bloody. Stalin began to call himself Koba and this caught on with his friends. He was later to take on this pseudonym when he was in hiding from the tsar's police. By 1894, Stalin had finished all of his schooling and had received a scholarship to the theological seminary in Tiflis, the capital of Georgia. The theological seminary building was dark and depressing. The students could have no privacy and were spied on by the Russian Orthodox monks. The monks also checked their rooms to see what they were reading and carefully scheduled each day, with prayer and study. Students had only one short break in the afternoon where they would go into the city under strict supervision. At first Stalin seemed to fit in with the strict schedule. He did well in his schoolwork and received the highest marks for conduct. He found time to write poetry of which were romantic and nationalistic, these poems were published in a Georgian magazine devoted to the preservation of Georgian culture. Gradually Stalin became frustrated under the harsh regime. Years later, Stalin told an interviewer "In protest against the outrageous....methods prevalent in the seminary, I was ready to become, and actually did become, a revolutionary." In 1898 Stalin took his first step towards a revolutionary lifestyle when he joined a Marxist group in Tiflis.

Gun Control Essay

Guns kill many innocent people every year. Some states require permits for guns and some states do not. There are many laws put in to effect to control guns. The main two laws that will be covered in this essay are just and unjust laws when it comes to gun control. (A just law is a man-made code squares with the moral law.) (An unjust law is that is out of harmony with the moral law) meaning that the† unjust law is not a law at all.† People have always been interested in using weapons for various reasons. The Constitution legally established the right for any law abiding citizen to keep and bear arms, yet proponents of gun control wish to steadily erode this law through regulation and legislation. Some people collect gun as collectors while some use them for protection and others use them for hunting. The term gun control is just that, a steady relentless effort to seize control by chipping away at the edges of the law until is gone entirely. While some people oppose the idea, others claim that the government should introduce tighter gun controls. The first argument of the opponents of strict gun control laws is that most people own guns to protect themselves. They claim that guns are necessary for self-defense because the police are unable to stop violent crime. Opponents further maintain that citizens keep guns to feel safe and defend themselves and their families whenever the need arises. Therefore, gun control laws disarm only the innocent people who obey the laws. Gun laws can protect people while the  same law can get someone injured, due to self-defense. No law should ever be broken because they are here to protect the people, so they say. If everyone abided by this gun law there will be no one in jail for shooting someone. There has to be something out there to help everyone understand the significance of the gun law, but there are always the opposers that make everything hard to understand. How can someone protect their family if they  cannot have guns, but the enemy â€Å"law breaker† will get their hands on one and cause harm to someone or even to their self. By not being able to protect their family makes it hard for someone to abide by these gun control laws. Every man should be able to protect their home with a gun as long the guns is kept in a safe place with child proof locks on them. Another argument put forward by people who are against gun-control is that many people keep the guns for sport and recreation. According to the opponents, these gun-owners are responsible citizens who do not intend to harm anyone. They further say that shooting and hunting are sports which many people enjoy, and gun control take firearms from hobbyist and hunters. Hunters are just trying to provide food for their families as a result of the gun law their family might starve. No one ever think about things like that they only think about how someone can be injured or killed when it comes to guns. Shooting sports can be relaxing but the gun law makes them stressful. Guns can really be dangerous when it is put in the hand of the wrong person in wrong in the wrong mind frame; therefor gun laws affect everyone that deals with some sort of guns. Most people think that gun control is absurd due to the fact that everyone doesn’t think the same way. Most sportsmen is against gun control because before the law came about they was able to live free and not worry about the violence these guns was causing. Hunters can’t hang their guns in the back window of their pick-up truck no more due to the  control laws. There should be a background check done for everyone before buying a gun so everyone don’t have to suffer for someone else mistakes. Some hunters think that gun control laws are too stiff. Guns have been around for a long time and really had no restrictions on them now hunters and sportsmen have to pay close attention to these laws so they won’t go to jail. Hunters think the gun law is unjust, while everyone else thinks it is just. (An unjust law is no law at all) makes it hard to distinguish between a just law. Recreational use for gun can be harmful to if someone is using that gun for the first time. Going to the gun range can be a stress reliever for some people and target practice for others. Needless to say but everyone no matter of age or experience should know the gun law if they going to be using a gun. Although some people oppose gun control law, others support  the idea because it may reduce the crime and accidental shootings. The reason of gun control law claims that not owning a gun can decrease the homicide that is happing. They assert that most murder victims are killed by firearms. It is also maintained that in robberies and assaults, victims are more likely to die when the criminal is armed with a gun than when he has another weapon. Most rappers rap about killing so if the kids start listening to this music they will start trying to be like the rappers, because young listeners indulge into rap music. A gun can be purchased in my different places and that’s how kids end up with them. Another reason why people oppose the gun law is because if everyone was able to carry a gun most of these killing by guns would not be happing. People must protect their self at all time because these gun laws can be for or against anyone. Most homicides with guns involved lead to people going to jail because they think they are bigger than the law, people must learn that laws are here to protect citizens. Martin Luther King Jr was killed by a gun and he was a non-violent person. People should be more like Dr. King and use the (non-violent) approach to solve any problem. An unarmed person is prone to a homicide due to the fact they can’t protect them self against an armed individual with a gun. The gun law should help people instead of hurting them. Many crimes can be stopped if the people stop be selfish. Murders happen every day and everywhere but it’s up to the people to stop them or at least decrease the rate of them happening. Guns should only be used by the military at war time but not to kill just to scare. Many people know the law some just think that it is put into effect or pertain to the ones that committing these homicides. The effects of gun control also assert the stricter laws can prevent accidental shooting especially among children. Children have a tendency to play with their parent’s gun because they think it is a toy. Parents should always keep their firearms in a safe with a child proof lock in the trigger well of their gun. If all parents that own guns lock the guns up and keep it away from their kids there would be less school shootings. A lot of youngster can be easily influenced by violent video games and TV shows that promote violence, therefore the gun laws should be tighter. Most youths today rather are out in the streets with the  wrong crowd than at home learning how to prevent homicides or accidental death due to gun control. Kids don’t know right from wrong unless their parents teach them. A lot of kids lost their lives because the parents didn’t know how to secure their guns correctly. The gun law is people should know if they want to own a firearm. In order to reach out and get the attention of the youth there has to be more parents getting involved in their kids’ lives and teach them about these gun laws if they got gun in their homes. To sum up, the opponents of gun control believe that tighter laws restrict only people who use firearms for self-protection or recreation whereas those who are in favor of gun control  claim that guns cause more harms than benefits. However, it is obvious that gun ownership is very risky, so it is necessary for the governments to introduce stricter gun laws and educate people about the firearms. With stronger gun control laws, the crime and murder rates will most likely decrease all over the world. Gun don’t kill people it the people who is not gun law educated that kills people. The gun control law was put into effect to help the citizens not to kill off the population, but many people is still getting hurt or kill by someone pulling the trigger on a gun. Works Cited Cohen, Samuel, â€Å"Letter from Birmingham Jail† 50 Essays: A Portable Anthology. 3rd Edition Blackmore, Howard L. â€Å"Guns and Rifles of the World† Firearm Pictorial Works: 1965 Marsh, Pamela C. â€Å"Madison Firearm Dealer Sentenced† Tallahassee, Florida 30 April 2014. (newspaper) â€Å"Guns Guns† April 2013. (magazine)

Improved Fast Decoupled Power Flow

The power flow analysis is a very important and tundamental tool in power system analysis. Its results play the major role during the operational stages of any system for its control and economic schedule, as well as during expansion and design stages The purpose of any load flow analysis is to compute precise steady-state voltages and voltage angles of all buses in the network, the real and reactive power flows into every line and transformer, under the assumption of known generation and load.During the second half of the twentieth century, and after the large technological evelopments in the fields of digital computers and high-level programming languages, many methods for solving the load flow problem have been developed, such as indirect Gauss-Siedel (bus admittance matrix). direct Gauss-Siedel (bus impedance matrix).Newton-Raphson (NR) and its decoupled versions Nowadays, many Improvements have been added to all these methods involving assumptions and approximations of the trans mission lines and bus data, based on real systems conditions The Fast Decoupled Power Flow Method (FDPFM) is one of these improved methods, which was based on a simplification of the Newton-Raphson method and reported by Stott and Alsac in 1974[4]. This method and due to its calculations simplifications, fast convergence and reliable results became the most widely used method in load flow analysis.However, FDPFM for some cases, where high RA ratios or heavy loading (Low Voltage) at some buses are present, does not converge well. For these cases, many efforts and developments have been made to overcome these convergence obstacles. some of them targeted the convergence of systems with hgh RIX ratios, others those with low voltage buses However, one of the most recent developments is a Robust Fast Decoupled Power Flow developed by Wang and u; it Is ased on heuristic justification and general voltage normalization methods [171 and solves both high RIX ratios and low bus voltages problem s simultaneously.Though many efforts and elaborations have been achieved in order to improve the and simulations are becoming more developed and are now able to handle and analyze large size system. Today, and after reaching processor's speeds higher than 3 GHz, any improvement in the speed of convergence of the power flow method, provided it leads to reliable results, is of great value. This speed improvement is very important when involved in operational stages of power distribution, where any illisecond saving can hugely increase the probability of the right decision, of the control and dispatch computerized system.This paper works on providing computing savings (in flops) and thus higher speed of convergence of the FDPFM based on the initial approximation in which real power changes are considered to be most sensitive to variations in voltage angle and much less to those of voltage magnitude, as well as on the high sensitivity of reactive power changes to variations in voltage m agnitude and much less to those of voltage angle. In this paper, the attention was focused on the update of the voltage angle (6) and oltage magnitude (V) in each iteration, based on the improvement of flops achieved, and obviously on the results obtained.The results of these improvements and the comparative analysis with the Newton-Raphson and classical FDPFM will be presented using the three IEEE bus systems of 14, 30 and 57-bus, although the IFDPFM can be applied to any size bus system. II. Fast Decoupled Power Flow Method As the FDPFM is derived from the Newton-Raphson we will start from the matrix representation of NR, apply some simplifications and approximations, to reach the equations of the FDPFM.The matrix representation of the N-R method [17] is: O APOOH Where I IVJI IYiJl +6]) And -2 cos Bit +2 cos -6i +6]) Nii – = I VI II YiJ I cos (B iJ- 6i + 6]) Nil (7) -2 IYiil stn +2 IVJI IYiJl cos -6i +6]) Now, for typical power system branches: XIR and ; 200 (10) between AQ and A6, hence N and J entries of the initial matrix of (1) can be ignored leading to the following decoupled equations: (12) Now, the diagonal elements of H according to Stott and Alsac [4] can be written as: IVi12Bii (13) Where Bii = I Yill sin Bii is the imaginary part of the diagonal elements of the bus admittance matrix Ybus.Further simplifications can be applied to equation (12), by considering Bii Qi and I Vil 2 z I Vil yielding to the following simplified Hit: Hii=- (14) Also, as under normal operating conditions 6] – 6i is quite small, thus Bii – 6i + 6] Bit, and IVJI 1, the off-diagonal elements of the matrix H can be written as: HIJ I Vil (15) Similarly, the diagonal elements of the L matrix can be written as: Lil † (16) And its off- diagonal elements as: LiJ=-lVll (17) Applying these assumptions to equations (11) and (12) we get: =-B'A6 I vil (18) (19) where B' and B† are the imaginary part of the bus admittance matrix Ybus , such thatB' contain s all buses admittances except those related to the slack bus, and B† is B' deprived from all voltage-controlled buses related admittances. Finally, all these approximations and simplifications lead to the following successive voltage magnitude and voltage angle updating equations: (20) IVI (21) These equations formed the basis of the iteration scheme upon which the Matlab software written and then updated. Ill.Updated Algorithm The algorithm written according to the equations derived in the previous section is as follows: Step 1: Creation of the bus admittance Ybus according to the lines data given y the IEEE standard bus test systems. Step 2: Detection of all kinds and numbers of buses according to the bus data given by the IEEE standard bus test systems, setting all bus voltages to an initial value of 1 pu, all voltage angles to O, and the iteration counter iter to O.Step 3: Creation of the matrices B' and B† according to equations (18) and (19). Step 4: If max (AP, A Q) accuracy then Go to Step 6 else 1. Calculation of the H and L elements of equations (14), (1 5), (16), (17). 2. Calculation of the real and reactive power at each bus, and checking if Mvar of generator buses re within the limits, otherwise update the voltage magnitude at these buses by ? ±2 3. Calculation of the power residuals, AP and AQ. 4.Calculation of the bus voltage and voltage angle updates AV and A6 according to equations (19) and (20). 5. Update of the voltage magnitude V and the voltage angle 6 at each bus. 6. Increment of the iteration counter iter = iter + 1 then Go to Step 4 Print out ‘Solution did not converge' and go to Step 6 Step 6: Print out of the power flow solution, computation and display of the line flow and losses. The update of this algorithm was based on the weak coupling between AP and AV, nd between AQ and A6, explained in the previous section.Specifically, in the fourth subroutine of Step 4 of the initial algorithm, and instead of updating the voltage magnitude and the voltage angle once and simultaneously in each iteration, the improved algorithm updated either the voltage angle or the voltage magnitude at each bus, Jumped to subroutine 1 to recalculate the real and reactive power and then updated the second variable based on what was updated first.Moreover, and for more speed improvements and convergence reliability, the update of one of the two variables was repeated several times, holding the other ariable at its last calculated value, which reduced the number of floating point operations of the algorithm and thus lead to the faster convergence of the IFDPFM. IV. Numerical Analysis The performance of the IFDPFM was tested on IEEE 14, 30 and 57-bus systems with a convergence accuracy of 10-3 on a MVA base of 100 or equivalently 10-1 MVA for both power residuals AP and AQ.This numerical analysis involved a speed comparison between the NR method, the FDPFM and the IFDPFM based on the number of flops (floating point oper ations) of each algorithm implementing each method, rather than on any other basis, because he flops count is independent from the CPU speed or the specific programming language used. In addition, as mentioned in the previous part, the algorithm of this paper updated the voltage angle several times before updating the voltage magnitude or vice versa which resulted in a different flops count for each combination used for the same IEEE bus system.These combinations will be noted according to the number of loops of update of each variable. For instance, updating twice the voltage angle (6) and then once the voltage magnitude (V) in the same iteration will be written as (2;1). Note that any flops number without the previous notation will be the one of the best case of the updated algorithm. Moreover, for any combination to be listed in this paper it should have satisfied the condition of no more than 3 % deviation of its results from that of the NR method.The bar graph in Figure 1 shows a comparison based on the number of flops between the NR, FDPFM and the best case of IFDPFM for the three IEEE standard bus systems used in this paper. Number of flops per method per system 934. 573 305. 126 314. 925 157. 310 System 57 4,421. 752 2,841. 646 14 30. 823 56. 829 24. 574 1 ,ooo ,500 2,000 2,500 3,000 Flops IFDPFM FDPFM 4,000 4,500 (Thousands) Fig. 1: Flops Comparison between the 3 methods. It is clearly seen that the IFDPFM requires much less flops to converge as compared to FDPFM or NR.This flops saving is proportional to the system size and as shown, increases with the increase of the number of buses. Obviously, this improvement in the number of flops will make the IFDPFM converge much faster than the two other methods whatever CPU used. Numerically, and for the biggest system involved in this paper (IEEE 57-Bus System), the IFDPFM revealed a flops saving of about 67 % when ompared with the FDPFM and about 78 % when compared with the NR.Normally, and as mentioned bef ore, this saving goes down to the order of 50 % for the two smaller bus systems. In addition, and in order to reach the best case presented above, different strategies of updating the voltage angle (6) and the voltage magnitude (V) were tested and compared first with the FDPFM then with the NR. Figure 2 below the percentage of flops of IFDPFM versus that of the FDPFM, for 10 different updating strategies and for the three IEEE systems.Percentage Flops IFDPFM vs FDPFM 75 50 25 Delta;Voltage Loops IFDPFM14 IFDPFM30 IFDPFM57 Fig. 2: % of flops of IFDPFM vs. FDPFM for different voltage angle and voltage magnitude updating strategies. At the first look, it is seen that for the three systems, three parallel curves are sketched with most values less then 75 % of the FDPFM. This parallel property of this graph shows the consistency of the algorithm in its number of flops variation for each strategy for each system studied.Also, it is seen that for low number of voltage magnitude and voltage angle loops the IFDPFM can't be more efficient than FDPFM, but for a slightly higher number the IFDPFM shows great improvement in flops saving nd reaches the highest improvement at the point (4;3), where in each iteration, the voltage angle was updated four times while the voltage was kept at its initial value and then 6 was kept at its last value and V updated three times.Numerically, and for the best case of IFDPFM (4;3), the new algorithm showed a flops saving of 57 % for the 14-bus system, 50% for the 30-bus system, and 68% for the 57-bus system. Figure 3 below shows the percentage of flops of IFDPFM versus that of the NR, for 10 different updating strategies and for the three IEEE systems. IFDPFM vs NR 175 150 25 Fig. 3: % of flops of IFDPFM vs. NR for different voltage angle and voltage magnitude updating strategies.Basically, the same comments of the comparison of IFDPFM with FDPFM apply in this comparison. However, here the flops saving is much more significant and is propo rtional to the system size. Numerically, we have a 21 % flops saving for the 14-bus system, 49 % for the 30-bus system and 78% for the 57-bus system. Finally, it is remarked that when compared with NR, IFDPFM savings showed a high variation in their percentage, mainly because they are highly proportional to the

Effects of Powerpoint Presentation in the Academic Performance

Effect of PowerPoint Presentation in the Academic Achievement of the Senior Students of Madapdap Rest. High School in Physics In partial fulfilment of the requirement for the subject Elective 2 Current Trends and Researches in Science Teaching Submitted by: Jeffrey R. Yumang MAEd-General Science Submitted to: Dr. Jacqueline V. Bagunu Acknowledgement Foremost, I would like to express my sincerest gratitude to our Professor Dr. Jacqueline V. Bagunu for her patience, motivation, enthusiasm, and immense knowledge.Her guidance helped me in all the time of writing this action research. My sincere thanks also goes to the staff of PAC library for allowing me to borrow their journals and books in especially in the field of statistics. I thank my fellow MAEd General Science students for their encouragement and support they have showed in doing this action research. Last but not the least; I would like to thank my family: my parents, my girl fried May Ann Tayson for the understanding during the days that I lost quality time to her in completing this laborious requirement.And above all, to our mighty God – the source of knowledge and wisdom. ABSTRACT In recent years, the uses of PowerPoint (a form of multimedia) presentations in classroom instruction have significantly increased globally without examination of their effects on students learning. This action research investigated the â€Å"Effects of PowerPoint Presentation in the Academic Achievement of The Senior Students In Physics†. The researcher conducted an experiment, which includes a treatment-control design, in a classroom setting within the first quarter of the year.The respondents were divided into two groups. In group A, traditional system was used while Group B PowerPoint Presentation was utilized as the delivery system. The results show that PowerPoint presentation may improve students’ academic achievement by 4% over the use of tradition method of teaching More so, there is a significant difference in the use of PowerPoint Presentation over the traditional method of teaching. TABLE OF CONTENTS Page Abstract†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Acknowledgement†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ii List of tables †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦iii Introduction†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 1 Statement Of The Problem†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 3 Scope And Delimitation†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦3 Review Of Related Literatures†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦4 Methodology†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â ‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Research Design†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦9 Instrumentation†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦9 Time line†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â ‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦9 Results and Discussions†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦11 Conclusions and Recommendations†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 14 References†¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 16 Appendices†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦18 List of tables Page Table 1 Summary of the modules in Physics†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Table 2Mean and Proficiency Level of group A (control group)†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Table 3 Mean and Proficiency Level of group B (experimental group)†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Table 4 Summary of findings (A comparison)†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Table 5 Summary of Analysis of test in hypothesis 2†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. INTRODUCTION Nowadays, one of the most widespread tools that is used in the computer aided education is PowerPoint presentations which provide to transmit the course contexts visually to the students (Atkins-Sayre et. al. 1998: 3). Originally PowerPoint was developed for commercial and business purposes by Microsoft before approximately 20 years.However it has quickly penetrated the scientific and educational circles as well (Szabo & Hastings 2000: 176). Microsoft estimates that 1. 25 million PowerPoint presentations take place every hour (Levasseur & Sawyer 2006: 101). In the traditional education environments, the duty of the students is to adhere the education activities as a passive receiver and memorize the content of the lesson (Surmeli 2007: 30). PowerPoint presentations create more powerful sensory alerts when compared with the traditional education materials (blackboard, overhead projections, etc. While giving the lessons with PowerPoint presentations, the content of the lesson stays the same, but the form of transmitting the lesson to the student changes. The PowerPoint presentations which are prepared for lessons have the advantages such as having strong colors, gradual building of text, simple animation of diagrams, facilities for simple editing and updating (Lowry 1999:19 ). Thus it can be mentioned that the PowerPoint presentations provide significant time and force savings. As the popularity of the PowerPoint presentations increase, the studies concerning the pedagogical results of the usage of this tool increase.The advantages of giving lessons with the PowerPoint presentations could be generalized as follows in the light of the academic studies till now: * PowerPoint contributes to properly forming the course content and giving lesson (Sugahara & Boland 2006: 392, Hlynka & Mason 1998: 47, Nouri & Shahid 2005: 55). * It simplifies taking notes during the lesson (Cook 1998: 5, James et al 2006: 386) * Students think that following the lesson from the screen is funny and interesting, so the PowerPoint presentations positively affect students (Parks 1999: 207, Nouri amp; Shahid 2005: 58, James vd 2006: 391, Atkins-Sayre et al 2006). * PowerPoint motivates the students for attendance to the lessons (James vd 2006: 387, Sugahara & Boland 2006: 396). * PowerPoint encourages students for learning (Harrison 2006: 10. Despite these advantages brought about by technology, still there are some teachers who are resistant to change their styles in teaching. They keep on applying the traditional method of teaching like the use of manila paper, lecture discussions and so on.The researcher believes that there is a great impact on the academic achievement of the learners by using this form of multimedia although there has been a lack of consensus in the studies concerning â€Å"the effect of PowerPoint presentations on the student performance†. Till now, the researches about this topic reached different results. Somehow, the researcher hopes to encourage the Science teachers to put some innovations in their practice by showing the â€Å"Effect of PowerPoint presentations in the Academic Achievement of the Senior Students of Madapdap Rest.High School in Physics. † STATEMENT OF THE PROBLEM This action research aimed to determine the â€Å"Effect of PowerPoint presentations in the Academic Achievement of the Senior Students of Madapdap Rest. High School in Physics. † Specifically, it purports to answer the following questions: 1. Which between the two groups perform better? 2. Was there a significant difference in the use of PowerPoint presentations and the traditional method of teaching? Hypotheses: 1. Group A (traditional method of teaching) perform better than group B(PowerPoint presentation) 2.There is no significant difference in the use of PowerPoint presentation and the traditional method of teaching. Scope and Delimitation This action research on â€Å"The Effect of PowerPoint Presentations in the Academic Achievement of the Senior Students of Madapdap Rest. High School in Physics was conducted at Madapdap Rest. High School located in Madapdap Rest. Mabalacat Pampanga. There were two hundred (200) senior high school students who were chosen respondents of this study. LITERATURE REVIEWThe Rela tion of Dual Coding Theory and PowerPoint The theoretical framework of the effect of education technology tools, which have high visual effects like PowerPoint, on learning is â€Å"Dual Coding Theory† generated by Allan Paivio in 1986. Dual Coding Theory is based on the assumption that the same information coding (presenting) in two different but supporting each other forms enhances efficiency in learning. Paivio began his studies concerning Dual Coding Theory in learning process in 1960s and the theory was developed in 1986.After 1980s, the significance of the theory was increased by the development of education technology practices (Aldag & Sezgin 2003: 125). Paivio’s Dual Coding Theory could theoretically explain the effect of PowerPoint in learning when it is thought with the information coding theory. According to the information coding theory, the process of learning is as follows: (Tay 2004: 3) * Information is received from external sources by senses; * It tra nsforms into specific forms by electing in sensory register; * It is coded in short-term memory; The information in the long term memory goes back to the short term memory and integrates with the new information, becomes coded with this method and has a new meaning; * The coded information storages in the long term memory. According to the several researches concerning Dual Coding Theory, individuals learn more effectively with the combination of verbal and visual information (Levasseur & Sawyer 2006: 105).Presentation of information to the students by education technologies that evokes the non-verbal systems such as PowerPoint presentations, contributes to the process of transmitting the information to short term memory from sensory registers and then to long term memory after coding them. Through the usage of PowerPoint, during the lessons, the words or the concepts that should be emphasized could be also visually presented and the attractiveness of the information increases. A st udy by Luna and McKenzie (2001) indicates that both faculty and students think multimedia presentations enhance learning.However, test results showed no difference between multimedia and traditional lecture formats. In contrary, the study made by M. Gale Blalock and Robert D. Montgomery (2005) on The Effect Of Powerpoint On Student Performance In Principles Of Economics:An Exploratory Study shows that the results indicate that multimedia presentations can improve test scores significantly. Additionally, students who are above-average academic performers receive more benefit from multimedia presentations than students of below-average academic performance.One study that has examined the relationship between multimedia and student learning and attitudes was conducted by Butler and Mautz (2003). In a laboratory experiment conducted during a 30-minute time period, they found that multimedia did not affect student recall in all situations. vButler and Mautz did find an interaction betwee n the effects of the multimedia presentation and the student’s preferred class representation style (i. e. , whether the student was considered a â€Å"verbal† or â€Å"imaginal† learner). Effect of PowerPoint presentations on student learning.The evidence that PowerPoint presentations influence learning is largely anecdotal. Bryantand Hunton (2000)states that the degree of improved learning is a function of a complex set of interactions among learner and medium attributes. Mason and Hlynka (2001) state that PowerPoint helps structure the content and processing of a lesson or lecture. Aiding note-taking (and thus facilitating study) is another purported advantage of using PowerPoint (Cook, 1998). Parks (2005) report that students liked the lecture outline and graphs on the screen, and that the PowerPoint presentation had a positive influence on students.Harrison (2006) argues that PowerPoint enhances instruction and motivates students to learn. If this is true, the bigger question is, does PowerPoint help students learn? PowerPoint presentations incorporate graphics, animation, and color (imagery). Human information processing theories focus on how the human memory system gathers, transforms, compacts, elaborates, encodes, retrieves, and uses information. Sensory registers, short-term memory, and long-term memory are the three major storage structures of the human brain.Research has shown that attention plays an important role in determining when and how information is further processed from sensory registers to short and long-term memory. If information is not attended to, it is quickly lost in the sensory stimulus stage of processing. Reynolds and Baker (2000) find that presenting materials on a computer increased attention and learning, and learning increased as attention increased. Human information processing theories can shed light on how PowerPoint features (graphics, animations, etc. ) may influence learning.Information encoded at a representational level generates a short term memory trace, while information encoded at the referential level elicits both referentially-related verbal and nonverbal memory traces of a longer term nature. Associatively encoded information results in memory traces that include information about multiple verbal or Nonverbal items (Paivio 1990). It is referential encoding that is most relevant for this study. The graphical nature of the PowerPoint presentation arouses students’ imagery systems, which become more activated when information (e. . , instructional materials) is presented in non-verbal forms. PowerPoint presentations should arouse the imagery system and could contribute to comprehension, and improve short and long-term memory. Since, in a PowerPoint presentation, topics are presented in a hierarchical fashion with graphics, color, and animation, students could â€Å"use a mental image of that outline to study, to retrieve the information on a test, to organize th eir answer for an essay question, and to perform other educational tasks (Clark and Paivio, 1991. p. 176). Rose (2001) also notes that presentation of learning materials in graphical form is beneficial for students. Interaction between Learners’ Preferred Representation Styles and PowerPoint Presentation Cognitive theory suggests that learning is optimized when learners’ preferred representation styles are congruent with the attributes of educational technology. While offering guidelines for educators in using technology for instruction, Bryant and Hunton (2000) suggest that individual characteristics (cognitive differences) be taken into account in instructional design.Dual coding theory suggests that learners have preferred representation styles. Some individuals learn and recall well from visually presented information while others learn and recall well from verbally presented information. Kozma (1994) submits that to understand the relationship between media and le arning, we need to consider the interaction between the attributes of the medium and the cognitive processes of students. METHODOLOGYThis study attempted to determine the â€Å"Effect of PowerPoint Presentations in the Academic Achievement of the Senior Students of Madapdap Rest. High School in Physics. This action research was experimental in nature. The researcher selected among the 4th year students of Madapdap Rest. High School via draw lottery and were chosen as the respondents of this study. The respondents were divided into Group A and B and used as control and experimental groups respectively.The presentation for group A (control group) was supported by traditional, text-based, black-and-white, visual aids while the presentations for Group B (experimental group) was supported by PowerPoint, which provided colorful visual aids with graphics and animation. Two different teachers were used for this research study with the use of the same modules in Physics. Table 1. shows the summary of the modules including the lessons and the time frame that was utilized in this study. Table 1. Summary of the Modules in Physics for the 1st Quarter Modules| Lessons| Time frame| | Lesson 1 – Nature of Physics Lesson 2 – Physics Connections: Technology and SocietyLesson 3 – The Physicists: Their Role in SocietyLesson 4 – Thinking Physics: The Scientific Method| June 2012(1st – 3rd week)| 2| Lesson 1 – Energy: Its Role in the Development of Human Society Lesson 2 – Energy Conservation: An Answer to Energy Crisis Lesson 3 – Fossil Fuels and the Environment Lesson 4 – The Relationship between Matter and Energy| June – July 2012(4th -2nd week)| 3| Lesson 1 – The Nature of Light Lesson 2 – Reflection and MirrorsLesson 3 – Refraction and LensesLesson 4 – Colors, Interference and Polarization| July 20123rd -4th week| 4| Lesson 1 – The Human Eye and the CameraLesson 2 – Microscopes and TelescopesLesson 3 – Laser and Holography| Aug 2012(1st -2nd week)| The lessons were presented into different strategies and methods in teaching. Teacher A used traditional method of teaching in presenting his lessons while Teacher B utilized PowerPoint presentations in demonstrating his unit of instructions. At the end of the 1st quarter, the respondents were evaluated their academic performance based on the modules presented. Each group was given identical tests on the same date in the form of standardized test from the Division Office made by supervisor. This test was parallel with the modules that were presented as stated in the course description.Students’ performance was measured based on their examination scores. After administering the test, the scores were tabulated, analyzed and interpreted. The researcher computed the mean and proficiency level of the students to assess which one performs better in the standardized test and to determine the significant difference of the two groups, t-test was applied for independent samples. Results and Discussions Table 2. shows the mean, proficiency level and the standard deviation of the students under the supervision of Teacher A who used the traditional method of instruction. Teacher A attained a mean grade of 26. 1, a proficiency level of 52. 2% with an SD of 9. 02 Table 2.MEAN AND PL OF TEACHER A (Tradition Method of Instruction) Class Interval| Midpoint (x)| Frequency (f)| fx| X2| fx2| 45-50| 48| 0| | | | 41-45| 43| 1| 43| 1849| 1849| 36-40| 38| 10| 380| 1444| 1440| 31-35| 33| 22| 726| 1089| 23958| 26-30| 28| 21| 588| 784| 16464| 21-25| 23| 28| 644| 529| 14812| 16-20| 18| 12| 216| 324| 3888| 11-15| 13| 6| 78| 169| 1014| 6-10| 8| | | | | 1-5| 3| | | | | | | N = 100| ? fx = 2675| | ? fx2 = 63425| MEAN X = ? fx N = 2675 100 = 26. 75 STANDARD DEVIATION ? =v(? fx2) _ (? fx)2 N N = v63425 _ (2675) 2 100 100 = v634. 25 – 715. 56 =v-81. 31 =9. 02 Table 3. reveals that the teache r B who incorporate PowerPoint presentations in his instructions obtained a mean of 28. 1, a proficiency level of 56. 2% with an SD of 7. 00.Table 3. MEAN AND PL OF TEACHER B (POWERPOINT PRESENTATIONS) Class Interval| Midpoint (x)| Frequency (f)| fx| X2| fx2| 45-50| 48| 0| | | | 41-45| 43| 3| 129| 1849| 5547| 36-40| 38| 12| 456| 1444| 17328| 31-35| 33| 24| 792| 1089| 26136| 26-30| 28| 23| 644| 784| 18032| 21-25| 23| 25| 575| 529| 13225| 16-20| 18| 9| 162| 324| 2916| 11-15| 13| 4| 52| 169| 679| 6-10| 8| | | | | 1-5| 3| | | | | | | N = 100| ? fx = 2810| | ? fx2 = 83863| MEAN X = ? fx N = 2810 100 = 28. 1 STANDARD DEVIATION ? =v(? fx2) _ (? fx)2 N N = v83863 _ (2810) 2 100 100 = v838. 63 – 789. 61 =v49. 02 =7. 00 Table 4. Summary of findings (A comparative analysis)Summary of findings| Teacher A who used traditional method of instructions(control group)| Teacher B who used power point presentations(experimental group)| Mean| 26. 75| 28. 1| Proficiency level| 52. 2%| 56. 2%| Stan dard deviation| 9. 02| 7. 00| Number of cases| 100| 100| Table 4 exhibits the comparison of the two methods of teaching. This table disproves the hypothesis that Group A (traditional method of teaching) perform better than group B (PowerPoint presentation). In fact, the study shows that the utilization of power point presentation can enhance learning just like other related studies. Variables| Df| Computed t-valueTwo-tailed at . 5| Critical value| Group A Traditional method of instructions (control group)| 98| 3. 38| 1. 98| Group B PowerPoint presentations (experimental group)| | | | Table 5. Summary of Analysis of test in hypothesis 2. p

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