This book is all about logic puzzles, challenging kids to crack codes and determine answers by process of elimination and by observing clues. It exercises skills like reading, planning and reasoning.

This workbook offers a good range of multiplications activities to strengthen your third grader's math muscles.

This workbook gets kids ready to be expert dividers, challenging them with whole-number quotients, remainders and mathematical word problems.

Get long division down to a tee with a series of word problems and practice sheets. This series includes division problems with decimals too.

If your child loves math puzzles like KenKen or Sudoku, she'll enjoy these mind-bending exercises! Practice multiplication, division and even some algebra with these puzzles.

Let your voice be heard! This workbook challenges kids to express their opinions. But more importantly, they'll learn how to support opinions with good evidence and facts.

Approach spelling from another angle with this brain teasers workbook. It touches on a mix of subjects from U.S. geography to a bit of science.

These math worksheets apply multiplication to the real world with interactive games and word problems that address multiplying double-digit numbers, place values and the properties of operations.

Water is the source of life—and of fascinating science! Full of exciting experiments, this workbook brings to life important concepts like water density, the water cycle, and the chemistry of water.

Bring good tidings and cheer all winter with a winter break fun pack! Complete with a deck of playing cards, puzzles, drawing prompts and more, this mash up of brainteasers will keep boredom at bay.

A roll of the dice. A flip of a coin. A game of rock, paper, scissors. Kids are calculating probability all the time. The ability to predict outcomes based on the odds is the focus of this series.

Learning about the human body doesn't have to be a pain in the neck! Our anatomy workbook features diagrams that are a sight for sore eyes and activities to give your kid a fun-filled shot in the arm.