Keep an eye on the sky! Kids will not only review important terms and concepts about the weather, they'll practice observing different weather patterns, recording temperatures and making predictions.

Get in shape for geometry! From 2D to 3D, polygons to prisms, your child will soon be a shape master. After a review of important terms and concepts, he will practice identifying real world shapes.

This book will have kids use their feet, paperclips and paper rulers to find lengths of drawings and real objects, putting comparisons and basic units before inches.

Measure up with the concept of comparison! Your kindergartener will love learning how to use a ruler and group objects according to size, length, weight, height and quantity.

Help your kindergartener explore the world of measurement with whimsical worksheets that highlight how to use a ruler, how to read a clock and how to fill in a calendar.

With these worksheets children use their logical thinking to distinguish the difference between objects such as tall or short, more or less. Measuring helps kids understand the dimensions of objects.

Learn to lasso numbers with an estimation round-up! Rounding and estimation are tools that can help kids add or subtract large sums quickly. And it's a skill that they can use in everyday activities.

Improve your pattern-recognition and estimation skills as you practice multiplication and division. Children use techniques like breaking down numbers and fast addition to arrive at the correct answer — and to understand the concepts behind the proc

In this arrays 101 workbook, we explore and practice concepts like multiplication, repeated addition, factors, and products — all using arrays!

This collection of worksheets will give fourth graders practice solving problems using fractions and decimals, plus a short introduction to negative integers.

From irregular measurements to using a ruler this workbook exposes kids to math vocabulary all about guessing and measuring lengths and sizes of objects.

With this workbook, your child can get a head start on subtraction by using simple pictures and familiar scenarios to symbolize the removal of numbers and objects.

Kids will practice naming shapes and describing objects using positional words. Treat your child to this pack of coloring pages, tangrams, and crafts!

Children learn early math by dealing with objects in place of numbers. These worksheets cover concepts of quantity, counting, and even adding and subtracting, using animals and nature to help teach.

What better way to learn sorting and categorizing than with familiar objects preschoolers see every day? This workbook is great for practice sorting and comparing, using household items.

Kids count and get familiar with patterns in numbers from one to 100. Using the hundred chart first graders can count and add by ones and by tens to build a strong base.

Volume is the measurement of space occupied in three dimensions. Practice calculating the volume of 3-D shapes using a variety of techniques and with real-life examples through a series of engaging problems and questions.

Learn subtraction in a more visual setting using this series of picture math problems. Kids will cross out, color and draw simple equations to help them understand an important math concept.

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

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