Planning a unit on simple machines? Save some time and energy with this collection of lessons and activities that explores how these devices are used in the real world to make life a little easier. 

Students discuss obesity epidemic, analyze food wrappers and their content and brainstorm healthy food choices. They work together to design a poster to encourage a healthier lifestyle.

What kind of design challenges are there in building structures to support rocket engines? The unit takes design teams through the process of building the lightest possible thrust support structure that can withstand the necessary forces...

Time to teach your students how to read a clock? This resource is here to help! Engaging young mathematicians with two fun videos and a series of hands-on activities, these lessons offer a multimedia approach to teaching this important...

Students investigate how to find the density of fluids and solids using math. Students also learn how to find the density of regular and irregular shaped objects.

Activities to practice understanding weight.

[Free Registration/Login may be required to access all resource tools.] Choose the appropriate customary units of weight or capacity given various measurement situations.

[Free Registration/Login may be required to access all resource tools.] Convert and identify equivalent customary units of weight.

[Free Registration/Login may be required to access all resource tools.] Convert among customary units of measurement by using factors and multiples.

[Free Registration/Login may be required to access all resource tools.] Converting customary units of measurement.

[Free Registration/Login may be required to access all resource tools.] Choose appropriate tools and metric units for given items and measurement situations.

[Free Registration/Login may be required to access all resource tools.] Convert customary units of measure by dividing when converting from small units to large units.

[Free Registration/Login may be required to access all resource tools.] Convert customary units of measure by multiplying when converting from large units to small units.

[Free Registration/Login may be required to access all resource tools.] Choose appropriate tools and customary units for given measurement situations.

Find out all about measurement in this test prep lesson exploring English and metric measurement. Students can compare metric and customary measurements using the conversion charts, assess how much they have learned using the interactive...

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will begin to identify the seven base units of the International System of Units. They will understand the commonly used metric...

[Free Registration/Login may be required to access all resource tools.] Convert metric units of measurement.

The world's roundest object helps solve the longest running problem in measurement- how to define the kilogram. A kilogram isn't what it used to be. Literally. The name, weight, and definition of a kilogram has been changing constantly...

Restaurant manager Tad Peelen explains how he uses math in his work in this video from KAET. In the accompanying classroom activity, students complete an activity involving one aspect of math that Mr. Peleen mentions: determining...

For the majority of recorded human history, units like the weight of a grain or the length of a hand weren't exact and varied from place to place. Now, consistent measurements are such an integral part of our daily lives that it's hard...

[Free Registration/Login may be required to access all resource tools.] Convert metric units of length, mass, or capacity by multiplying by powers of ten.

A comprehensive guide for learning all about mass with definitions, how to calculate mass, the difference between mass and weight, solved examples, and practice questions.

On this interactive site students learn to use various units of mass to solve problems and put objects in order by their mass.

[Free Registration/Login may be required to access all resource tools.] Convert among metric units of measure using powers of 10.