This document discusses how to leverage the developmental phases of intermediate, junior high, and high school students. It notes that parents have around 936 weeks or 6,552 jelly beans of influence on their child from birth to graduation. As a teacher, their time of influence ranges from 135 to 222 hours depending on the school. It emphasizes the importance of understanding what developmental phase a student is currently going through, as students at all phases experience physical, mental, cultural, relational, emotional, and moral changes. By knowing what can be expected at each phase, teachers can set appropriate expectations and leverage where students are developmentally.