Forgot to mention - I bought the notebook at Staples: http://www.staples.com/office/suppl...-4_139662_Business_Supplies_10051_SEARCH
The 4x4 squares are just about big enough for him to keep his numbers aligned in them. Writing is improving day by day.

Erica, thanks for the link. I'll take a look. That's exactly the type of stuff I'm looking for - i.e., no shortcuts, you have to do the (written) work.