These estimation slips can be adapted to suit any math or measurement activity in which children are asked to make an estimate and record how they came up with their estimate.

Bring an everyday skill to the table by helping your child try and "eyeball" a measurement for each item in inches and centimeters.

One of these animals is heavier than the other! Teach your child about the concept of weight with this measurement worksheet.

Measure the length of these items. Your preschooler will learn the basics of measurement with this hands-on activity.

Practice estimating and measuring centimeters using your very own paper ruler! Students will measure a drawn pencil and chalk with this fun hands-on activity.

In preschool math, your child will learn all about different shapes and sizes. challenge him to identify the largest animal in the group on this fun worksheet!

These alien buddies are all different heights, can you tell which is tallest? Help your child learn about height with this measurement sheet.

Can you help Johnny sort out the meters from the centimeters and the kilometers from the millimeters?

If your kindergartener knows her numbers, challenge her to put her number sense to work with an exercise in comparison.

Looking for a math challenge for your kindergartener? This counting worksheet is a great way to introduce them to basic inequalities and number comparison.

From reading a ruler to estimating weight, this worksheet is packed with measurement exercises to help first graders review.

Find out how long each flower is by cutting out the paper ruler and using it to measure each flower.

Your child will practice measuring and writing numbers, counting and identifying colors on this worksheet for preschool math.

Your child will practice measuring and writing numbers, counting and identifying objects on this worksheet for preschool math.

Practice some real-world chart-reading with this colorful worksheet featuring the fictional San Francisco Subway system.

Rounding in centimeters sounds tricky, but it's simple, really. This ruler worksheet is sure to help your child wrap her head around this math concept.

Your child will practice measuring and writing numbers, fine motor skills, counting and identifying objects.

Prepare for an upcoming measurement quiz with this handy review sheet that covers topics from using a ruler to converting quarts to cups.

In no time at all, your third grader will be a pro at changing units of measurement — like converting between grams and kilograms.

Children work with concepts like "most," "least," "more," and "less" in this early math worksheet.

First graders practice measurement in centimeters as they measure ribbons long and short.

Find out the record highs and lows in every U.S. state! This temperature chart also doubles as a negative numbers exercise.

Bust out the measuring tape, it's time to make some tree measurements! Use the mini ruler to help you measure how tall each tree is.

Try measuring with paper clips to find out how long the pictured objects are. This worksheet is great for measurement practice and building counting skills too.

Introduce your child to measuring with a ruler, using both inches and centimeters.

Practice measuring in centimeters with this beginner's worksheet! Kids can use the cut-out ruler to measure each item in centimeters.

This preschool worksheet will help your child with her counting skills as she determines which bear has more and which has less!

Help your preschooler tackle object comparisons with this simple worksheet that focuses on volume, or how much something can hold.

Use these vocabulary cards with the EL Support Lesson Plan: Exploring Metric Units of Length.

Step right up, kindergarten mathematicians! Do you dare to compare these colorful shapes? Just count them and decide how they compare.