Sid and Sam start to sing. But Sid doesn't stop. What can Sam do when Sid's song is too long?

When a glass monkey is stolen, High-Rise Private Eyes Bunny Brown and Jack Jones are on the job But will this be one case that's too tough to crack?

How do you share a pizza? You split it in half Two siblings split a yummy lunch and discover that using fractions can be messy. This hilarious book written by Stuart J. Murphy and illustrated by G. Brian Karas introduces the simplest of fractions: 1/2.

This is a Level 2 MathStart book, which is perfect for kids ages 6 and up. The MathStart series uses funny stories and colorful art to show kids that they use math every day, even outside of the classroom Each book features an activity guide to have fun with the math concepts presented in the story.

Supports the Common Core...

Every animal on Farmer Bill's farm is missing one mitten. Readers can investigate odd and even numbers as they unravel this mitten mystery

Climb aboard a giant spaceship . . . the Earth In glorious art, G. Brian Karas illuminates our Earth and its cycles and does a brilliant job of making the concepts of rotation and revolution understandable. As you travel, watch shadows disappear into night, and feel the sun on your face as winter turns into spring. All these amazing things happen because the Earth is constantly in motion, spinning and circling, gliding and tilting. As passengers of the Earth, our voyage never ends

Wilson Williams worries about passing his times-table tests

Wilson has a hard time with math, especially with Mrs. Porter's timed multiplication tests. If only he were as quick as Laura Vicks, the smartest kid in third grade, or as quick as his brother, Kipper -- a kindergartner. Wilson's mother and father try to help, but Wilson doesn't appreciate having to do practice tests on a play date. Fortunately, his friend Josh Hernandez is a comfort, as is Squiggles, the class hamster. Wilson is sure that with his own little animal squeaking and cuddling beside him, he could learn...

Here is an adorable picture book for curious kids, which explores skip counting and estimation in a fun pumpkin-themed classroom experiment. This book makes a wonderful read-aloud companion to any math or science curriculum, and it's a fun way to reinforce counting skills at home.

"How many seeds are in a pumpkin?" Mr. Tiffin asks his class as they gather around the big, medium, and small pumpkins on his desk. Robert, the biggest kid, guesses that the largest one has a million seeds; Elinor, sounding like she knows what she's talking about, guesses the medium one has 500 seeds; and...