No need to knock on wood, this book just takes a page from common superstitions to give kids great writing practice! They can consider some origins as they read and write about different beliefs.

Did you know there are 6 simple machines that make up every complicated gizmo out there? This book introduces the pulley, the lever, the screw, the wedge, the inclined plane and the wheel & axle.

Earth's neighbors have landed: the planets that is! Your child can make his way across our solar system, planet by planet, learning interesting facts like any good astronaut, and making a 3-D mobile.

Why does the earth spin? How is a rainbow formed? Feed the flame of curiosity in your child, and find out the answers to some of those age-old questions about how the world works.

Second graders will develop a deeper understanding of place value in this engaging math workbook.

This workbook is a festive way to work on reading comprehension strategies.

Expand children's problem-solving arsenal with this fundamentals of multiplication workbook.