What learning seems worth exploring further?

There are so many students who have ADHD.  We want to know more about ADHD.  We want to find out what strategies could we use with them.  We want to know how can we support them inside our classrooms.  We also want to find out at what age should the child be diagnosed for ADHD and what characteristics should we look for in children that might exhibit ADHD behavior.   We also want to know various strategies that we could use with kids whose parents don't support medicine.