Children practice estimating and comparing relative length in this engaging ordering worksheet.

You can measure length with all kinds of units, not just inches and centimeters!

In this worksheet, your child will be comparing two things in the pictures and will decide for himself which one is taller, older, or heavier.

Practice measuring centimeters with your first grader as you find the length of each shoe.

Help your child practice his skills with volume with this printable worksheet, which asks him to estimate how much liquid things can hold.