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.

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.

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

Leap and skip across the number line for addition and subtraction practice! Number line word problems help kids to easily visualize math equations, and multi-step problems make for an extra challenge.