A: You are already helping your ADHD students by investigating options. At least two ADHD coaching or skills training programs have been proven beneficial by double-blind randomized trials in educational settings:
Homework, Organization and Planning Skills (HOPS) and Challenging Horizons Program (CHP).
I discuss these two programs (and others) on pp. 216-222 in my book, Getting Ahead of ADHD: What Next-Generation Science Says about Treatments That Work- and How You Can Make Them Work for Your Child. Curricular changes are not easy, but if you have the resources to get started, these look extremely promising.
Additional information for educators at http://oucirs.org/educators-mh- professionals/