Help kids with their math skills plus their reading skills with the engaging and fun MathStart series Less Than Zero is perfect for teaching negative numbers to second, third, and fourth graders.... This description may be from another edition of this product.
Perry the Penguin is trying to save enough money for a ice scooter. He needs 9 ?clams?. He has none. Him mom pays him 4 clams for triming the ice in front of the house. He decides to make a graph. He charts out the money he earns on the graph. Then his friend invites him to the ice circus. Perry learns that it cost 5 clams. His friend loans him the extra clam he needs. He has several more encounters for earning and spending his clams, always charting his progress. He ends up in the negative a few times. But in the end he works out a way to get in ice scooter. I liked the way negative nubers were introduced in the book. The pictures kept my son?s attention. I also liked the extra math activites at the end of the book. This is a great math teaching tool.
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