When a child enters first grade, he/she has his/her first experience with needing to sit still, pay attention for extended periods of time, homework and be responsible for their actions.  For children with ADHD, these demands are often hard.  For this reason, ADHD is often diagnosed within the first few years of children entering school. 

As parents may have accepted their child’s behaviors as part of their personality, including making allowances for high-energy days or times when...