USMA provides a listing of commonly used metric system units, symbols, and prefixes.

This metric system tutorial is compared to the U.S. standard system so that students can comprehend the measurement of length, volume, mass and the like.

Metric Conversions offers online calculators for making conversions, downloadable tables in many types of metric conversion (pdf format), and free conversion tools to put onto your website or dynamic pages.

A guide to support parents as they work with their students in place value and problem solving with units of measure.

Practice identifying metric mass units by putting packages on the scale. Read the scale, then choose the correct number and metric unit.

Use this interactive, animated lab to explore conservation of mechanical energy.

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.

This site contains an extensive list of various units of measurement known internationally and across several disciplines. Unit symbols are also included.

Grams, kilograms and tonnes are explained, and real life examples are given for each.

This resource allows students to practice converting metric or customary units of weight. Students are able to select parameters that include metric or customary units and difficulty level. There are ten problems with instant feedback...

A guide to support parents as they work with their students in unit conversions and problem solving with metric measurement.

[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to read the scales for two items and record the weights in compound metric units. [1:22]

[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to read a scale and record the weight in compound metric units. [1:08]

A huge collection of teacher resources to aide in the teaching of all types of metric measurement: length, distance, mass, weight, capacity, and volume. Activities include measuring, estimating, converting, investigating, and finding...

This site allows you to convert weight/mass measurements. For example converting tons to grams. CCSS.Math.Content.3.MD.A.2 Measure and estimate liquid volumes and masses of objects using standard units