One of Liam's homework assignments was to use buttons and stack them up by the number given on each card. I was really impressed at how focused he was and how he didn't get frustrated when one pile would topple over. He would just start again and be content with his work. I like how his homework assignments really get the parents involved and help us remember to take the time to get down on the floor and play (or take photos, in my case, while praising his work).
Check it out - his nails are clean - only because he soaked in a 30 minute bath tonight!