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.

Introduce your first grader to centimeters by helping her measure some familiar things: school supplies!

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

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

Learn to convert ounces into pounds (and pounds to ounces) in this fun Easter worksheet.

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