The Average Difference Between The Highest and the Lowest Grades of Senior High School Students in SMJSI in the School Year 2022-2023 Submitted by: John Lawrence I. Tamala Submitted to: Ivan Lloyd V. Rom, LPT Background of The Study. School is a very important part of our society, it is what allow children to learn and grow to become the future generation of our society. This study aims to address the gap between the lowest and highest of grades of the students to raise awareness of how far behind are the students with the lowest of grades compared to the students with the highest of grades and if there is a solution to the problem. Statement of the problem. In most schools, the grades of the students vary so much that there is a large gap between the lowest and highest grades. This is a major issue in the society as not only does this reduce the amount of employment because a lot of people can’t even get a proper job because of failing grades, this also means that for these people who coudn’t even get a job because of their grades, they might end up becoming criminals instead because of this. Significance of the study. The goal for this study is to adress a major issue with education wich is that some students are so far behind than the others to the point of having failed grades. Solving this issue can help to reduce anemployment wich can be good for our society Scope of the problem. In this study, the grades senior high school students in SMJSI will be used as the sample.