Here’s what you need to know about middle school. This information is especially important to read if your child has ADHD and didn’t have difficulties in elementary school. If you’ve already read my e-book, you know that the primary feature of ADHD is a deficit of regulation. Difficulty regulating means the brain has difficulty organizing itself to attain future goals. The transition to middle school represents a major shift in the demand for self-regulation. Because of this, for students with ADHD many problems begin in middle school that didn’t occur in elementary school.