This workbook deals with more advanced forms of measurement, including pre-geometry concepts like perimeter and area, and data skills like graphing and charting.

These colorful probability worksheets are bursting with kid appeal, and offer an exciting new angle on word problems and data analysis.

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.

Take a crack at multiplication from a different angle! This book supplies a series of sheets looking at multiplying numbers with flashcards, lattice grids and times tables.

This workbook will challenge your fourth grader with math formulas, shapes practice and angle activities. Kids will also learn how to find areas and perimeters, classify triangles and calculate time.

Count and convert measurements for liquids, lengths and time with this supplemental book! So many practical skills come from knowing how to measure lengths, tell time and convert units of measurement.

Math can be a gritty business but, this workbook breaks down coordinate grids from different angles, from plotting simple points to finding hidden spies.