This site explains how to estimate sums of whole numbers. Gives practice and games to practice this skill.

This site explains how to round whole numbers to the nearest ten. The information on the site gives exercise problems and games to practice this skill in a fun and helpful way.

The learning activity reviews rounding to the nearest hundred. Students answer ten questions and can check their answers when finished.

The lesson explores how to round numbers. Explanations and examples are included in the tutorial.

Practice estimating the length of real life objects using US customary units. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice estimating the volume of real life objects using US customary units. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

The learning activity reviews rounding to the nearest ten or hundred. Students answer ten questions and can check their answers when finished.

Practice estimating the mass of real life objects using grams and kilograms. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Use this site to figure out if women really do live longer than men. A math challenge taken from today's health journals that explores data collection, data analysis, patterns, and graphing skills. Learn how mastering these skills can be...

This site explains how to round whole numbers. Gives problems and games to practice this skill.

Pancakes anyone? Students explore estimation and measurement by learning how to make pancakes. A hands-on lesson designed for students in grades 3-5 where students are engage in hand-on experiences involving measuring volume, converting...

In this Cyberchase video segment, the CyberSquad estimates how much air supply they will need to complete an underwater mission.

Sal estimates lengths using units of inches, feet, centimeters, and meters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.

This interactive worksheet covers a wide range of math concepts such as Roman Numerals, distributive property, estimating sums, and comparing fractions and decimals. Some concepts may be slightly challenging. Learners can access the help...

If you're a popcorn lover, you might want to take this math challenge. A real-world challenge on visually estimating volume of popcorn containers. A one page activity from the NCTM Math for Families collection. Life skill applications...

[Free Registration/Login Required] This flipchart is a review for the Georgia CRCT covering fractions and estimating.

Solve word problems by rounding whole numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Learners will use a variety of activities and games to learn how to round numbers.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

Here's a delicious math challenge for chocolate lovers! Use your estimation and measurement skills to discover which irregular shaped, chocolate covered cookie has the largest surface area. A one-page activity from the NCTM Math...