In our modern time, age of education is decreasing day by day. People have started tolearn more advanced things at earlier ages. This fact is also true for children. They arelearning more advanced thing now because they are facing new technology in everyaspect of life. Today, one of the most popular subject is computer programming so it is also one ofthe most popular technologies to investigate, inevitably. One reason to such popularity isthat computer programming is very important in every field of life or business and itseems that this importance will improve with time. Certain levels of logic and synthesisare needed for programming. It is crucial to improve these skills. This master thesis tries to improve and tame the programming abilities of childrenand strengthen the knowledge about the basic concepts of mathematics and physics,which are related to the computer science by creating simple computer games usingGreenfoot Framework. In this project, tutorials like approach was used. Designs of the games was studied astutorials and at the end of the last tutorial, two tests and a survey were applied. According to the results, purpose about improving and taming the programmingabilities of children is achieved. For the other purposes, these are increases around 8%and 16%. Since they are not dramatic increases and the target number is 6 I can not sayclearly that these purposes are also achieved.