Learn to graph while following the growth of T.J., an orphaned Siberian tiger cub who is hand-raised at the Denver Zoo. T.J. is a Siberian tiger cub born at the Denver Zoo. One day he stops eating. The zoo staff tries to tempt him with treats, but he refuses them all. The staff doesn't give up, and finally their love and persistence pay off. T.J. grows up to be a huge, healthy tiger. The delightful pictures of T.J. and the heartwarming story of his life will charm young readers as they learn the basic math skills of graphing in Tiger Math by Ann Whitehead Nagda and Cindy Bickel. Those who like storybooks can read just the right-hand pages of this book. But those who want to know more can use the graphs on the left-hand pages to see exactly how T.J. grew.

Learn about subtraction with the San Diego Zoo's famous baby pandas in Panda Math Hua Mei was the first giant panda cub born in the United States that survived more than a few days. She was born at the San Diego Zoo, and four years later her mother had another baby, Mei Sheng. Hua Mei and her brother, Mei Sheng, spend their days climbing on logs, lounging in trees, and eating bamboo. A lot of things the pandas do can be thought of in terms of subtraction. Young readers follow the famous cubs as they grow from tiny infants to big, bouncing pandas and learn about subtraction along the way.

Children learn about fractions with the Denver Zoo's baby polar bears, Klondike and Snow.

Learn about different ways to measure time by following the growth of a baby chimp Late one night, a tiny chimpanzee is born at a zoo in Kansas. He seems very weak, and the staff is worried. Will he survive? When the mother shows no interest in her baby, a pediatrician comes in to care for the little chimp. The baby grows strong and healthy, and soon he is big enough to be moved to the Denver Zoo. He is named Jiggs after the doctor who saved him. Jiggs is a lot like human babies. He wears diapers. He plays with his toys. He loves his pets. And he learns all kinds of new skills as he gets older. Follow Jiggs as he grows from a wobbly infant to a wild and wonderful toddler. Along the way you can learn about clocks, calendars, time lines, and other ways of keeping time records, in Chimp Math, from Ann Whitehead Nagda and Cindy Bickel, the authors of Tiger Math and Polar Bear Math.

Cheetahs are very fast—and very shy. When two young cubs come to the nursery at the San Diego Zoo, the staff hopes they will help visitors learn more about the plight of cheetahs in the wild. Majani and Kubali are shy, but with the help of their dog buddies they become perfect animal ambassadors. In Cheetah Math, kids can learn all about division from these baby cheetahs and their canine friends. A Junior Library Guild Selection

Birds come in all sizes, shapes, and colors. Birds are magic. Birds are everywhere. If you listen very carefully you will hear them, no matter where you live. And if you look very closely you will see them, no matter where you are. And if you can't go outside right this minute, you can always read this book!

Mrs. Lopez wants her class to celebrate 100 days of school. But Yoshi, Scott, Nathan, and Maggie didn't hear her right. They thought she said 100 days of cool! Now Mrs. Lopez says that if the four kids can be cool for 100 days in a row, the whole class can have the coolest party ever. Can they come up with 100 ideas? Cool socks . . . cool jokes . . . cool costumes . . . cool hats . . . cool volunteer projects . . . and all the other cool things that can be done with the numbers 1-100 make this the coolest math book around.