Abstract: An effectiveness study was performed at John Jay Science and Engineering Academy in San Antonio, Texas of a computer game to see if playing the game can positively impact students’ knowledge and performance. This paper reports on the process of developing the study of an algebra 1 computer game and the results from that study. Math Blaster Algebra by Davidson/Knowledge Adventure was given to students who were in algebra 1. This paper includes how the game was selected, what kind of data was collected, and what analysis was performed. The most significant result we found was a 9% increase of test scores for the group that used the game compared to the control group. Math Blaster Algebra made the most difference in understanding and manipulating linear equations. Some further initiatives are outlines for studying the effectiveness of computer games and their impact in the classroom.