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This video shows students an example of how to rotate a figure correctly within a plane across an axis.

Help students understand the distributive property with subtraction using figures.

Help students find a unit rate by dividing the fraction, which is the same as multiplying by its reciprocal.

Show students using this video that they can use the signs of an integer to determine if the product will be negative or positive.

This video shows students the inverse relationship between multiplication and division. They will also learn to use the inverse to check their answers.

This video explains how to write a fraction as a decimal by placing the numerator in the dividend then following operations of division.

After watching this video, students will be able to find the unit rate from a graph the same way they calculate slope.

This video teaches students to multiply two mixed numbers by changing them to improper fractions, then how to multiply and simplify.

Students can locate irrational numbers approximately on a number line diagram, and estimate the value of expressions.

Help students understand and recognize properties of a polygon—closed figures formed by three or more line segments that do not cross.

This video explains how to find the steepness of a hill by calculating its slope, or rise divided by run.

This video explains properties of complementary angles and that they will always equal 90 degrees.

Why does the shape of the moon appear to change? This science animation explains the phases of the moon.

Water covers more than 3/4 of Earth's surface. Watch this animation to learn about the water cycle and how the water cycle affects weather and climate.

Which cup of kernels will produce the most popcorn? Encourage students to make a hypothesis, then watch the video to see the answer.

Plants grow in different climates. Use this video to compare the growth of the water lily, cactus, orange tree, and morning glory. They are alike and different in many ways.

Introduce young kids to the physics of sound. Watch this video to learn how objects and animals make sounds with vibrations. Can you think of some other loud and soft sounds?

This video introduces students to two living things: plants and animals. See how living things grow, change, or move on their own.

This video demonstrates how water changes physical state from a solid to a liquid to a gas.

This video demonstrates how magnets attract some metal objects.

Watch this video to learn about food chains. A food chain shows how energy moves from one living thing to another.

Watch this video to learn about light and heat, two forms of energy. Energy makes things move or change.

A food chain shows how energy passes from one living thing to another. Watch this video to learn how plants and animals get energy from the sun and each other.

Many plants grow from seeds. Watch this video to learn about the life cycle of a tree and a flower.