My ex and I would send his daughter to school with coffee. She had to keep it at her desk so hence it was only for class time. The caffine would allow her to focus as best as she could. It worked for a very long time. Following that I knew a gal that used chocolate cover coffee beans on her pre-teen, I would of course try coffee in small doses at home. If it works for your little one then you could work on how much is needed during class.