I took this idea from No Time For Flash Cards and tweaked it a little bit for us. My daughter is great with shapes, but we still need to get number recognition down pat.
I used the sensory box idea from No Time For Flash Cards and filled ours with puzzle numbers, number magnets and bits of craft foam with numbers written on them. Then I typed out a simple sheet that read "Find the Numbers!" with each number in a column. When she found a number in the sensory box, she had to say the correct number name and sort it into the correct column. Fun learning!