This short video and interactive assessment activity is designed to teach fourth graders about converting feet to compound units.

This short video and interactive assessment activity is designed to give fourth graders an overview of conversion between cups, pints, quarts and gallons.

This short video and interactive assessment activity is designed to teach fourth graders about converting gallons and quarts into cups.

This short video and interactive assessment activity is designed to give fourth graders an overview of length (english units).

This short video and interactive assessment activity is designed to give fourth graders an overview of capacity - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about distances between points on one route (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about dividing weights (metric units).

This short video and interactive assessment activity is designed to teach fifth graders about division of lengths (metric units).

CK-12's Elementary Math Grade 3 is a series of videos and interactive videos designed to teach basic math concepts to 3rd graders. Concepts covered include Addition and Subtraction, Multiplication, Division, Place Value, Decimals, Time, Factors and Multiples, Money, Measurement, and Geometry.

CK-12's Grade 4 Elementary Math is a series of videos and interactive videos designed to teach basic math concepts to 4th graders. Concepts covered include Addition and Subtraction, Multiplication and Division, Multiple Operations and Grouping, Place Value, Decimals, Time, Money, Measurement, and Geometry.

CK-12's Grade 5 Elementary Math is a series of videos and interactive videos designed to teach basic math concepts to 5th graders. Concepts covered include Multiplication and Division, Place Value, Multiple Operations and Grouping, Decimals, Time, Fractions, Money, Measurement, and Geometry.

This short video and interactive assessment activity is designed to teach fourth graders about estimating measure by image: centimeters or meters?.

This short video and interactive assessment activity is designed to teach fourth graders about finding the capacity of water with illustrations (metric units).

This short video and interactive assessment activity is designed to teach fifth graders about finding the total amount of liquid in liters and milliliters.

This short video and interactive assessment activity is designed to teach fourth graders about solving two-step single-unit problems with four operations (metric units) - word problems.

In this activity, students investigate the simulated use of solid rocket fuel by using an antacid tablet. Students observe the effect that surface area and temperature has on chemical reactions. Also, students compare the reaction time using two different reactants: water and vinegar. Finally, students report their results using a bar graph.

In this lesson students will explore measurement units and solve problems involving measurement units.