This source offers videos, solutions, examples, and songs to help kids learn how to order three objects by length and compare the lengths of two objects indirectly by using a third object.

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...

Students will use their knowledge of measurable attributes (length, weight, capacity) to compare two or more objects using one measurable trait or more than two measurable traits to compare if the objects have more, less, or equal...

Math glossary and terms on units of measurement for kids. Learn the definitions used in this mathematics subject such as time, temperature, length, and distance.

Conversion calculators galore! Convert just about anything from one measureable unit into another measureable unit here with over two dozen calculators. Each of the links is specific to a measureable quantity. Some examples include...

In this video segment from Cyberchase, the CyberSquad measures Judge Trudy's land claim by using tarps, fence posts and a grid made with rope.

Do you need a quick conversion from metric units to imperial units or just the reverse? Use this resource for conversions of length, weight, pressure, and volume.

In this video from Cyberchase, the CyberSquad searches for a kidnapper using their only clues: a footprint and a handprint.

Dr. Math offers a way to calculate the altitude of a triangle using only the lengths of the sides of the triangle. He briefly explains how this was used by the Egyptians long ago.

Site provides various rulers that you can print out and have children use in the classroom. Great resource for math teachers!

Site provides various rulers that you can print out and have children use in the classroom. Great resource for math teachers!

In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.

The CyberSquad proves that the area of Hacker's land is equal to the area of Judge Trudy's land in this video segment from Cyberchase.

Documentary on the search for crocodiles measuring twenty feet or more in length, and the challenges to survival they face, e.g., from hunters. The reasons for their survival from dinosaur times are also examined.

This site explores the microscope in great detail. Content includes a focus on the microscope's basic functions (including a general diagram), the history of the microscope, each feature of the microscope, differing objectives,...

In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile. [2:49]

In this Cyberchase video segment, the CyberSquad learns what happens to the area of a rectangle when the shape enclosed by the perimeter changes.