Videos
Solving Equivalent Inequalities by Simplifying
This video shows students how to solve two-step inequalities by performing the order of operations in reverse.
Writing an Equation Given a Word Problem
This video explains how to use key information from a word problem to translate words into an equation to solve for "x."
Collect and Represent Data
In this video, Marta uses data collected in a T-chart to make a picture graph displaying her friends' favorite vegetables.
Estimate: Use Compatible Numbers
In this video, Alex and Jada learn to use compatible numbers to simplify complex multiplication.
How Plants and Animals Get Energy
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…
Models to Subtract 2-Digit Numbers
In this video, Marta learns various ways to subtract 2-digit numbers from 2-digit numbers, including regrouping and marking out.
Sound Waves, Pitch, and Volume Explained
Explain sound waves with this animation of vibrating keys on a vibraphone. Students will learn about pitch and volume.
Combine Volumes of Prisms
In this video, Emily learns how to calculate the volumes of irregular figures by combining volumes.
Fill a 10-Frame Model to Add
In this video, Marta learns to fill a 10-frame model to solve an addition fact.