Every animal on Farmer Bill's farm is missing one mitten. Readers can investigate odd and even numbers as they unravel this mitten mystery!
Everybody say, One...two...three...sassafras!" It's time for the Lumpkin family reunion, and all 8 cousins have to line up by age for their pictures. Getting into the right order is hard enough - but staying there is impossible!"
Perry the Penguin needs 9 clams to buy an ice scooter - but he's not very good at saving. As Perry earns, spends, finds, loses, and borrows clams, a simple line graph demonstrates the concept of negative numbers.