Gender affects and effects academic performance of students at all level of education. Often times, the disparity which exists; affect the performance of the both gender and this usually lies on the streaming and or banding of students in their respective classrooms. Thus, the need to stream students properly as such, influence their performance in no small measure. Therefore, this book, delves into the impact of gender-banding on academic performance of of Nigeria's Secondary school students in the English Language examination. The book finds out whether or not streaming students based on gender in the classroom affects their academic performance.