Students place the number cards on the matching boxes on the 

game board. When all the cards have been matched, they flip each

card over. If the correct matches are made, the animal picture on 

the back will be put together correctly. These 26 self correcting 

puzzles get sequentially more difficult, and they cover the following 

math skills: 

after, before, more less, between, even, odd, plus, minus, digits, 

numbers, half, double, equal groups, tally marks, sum, difference, 

greater than, less than and place value