# Videos

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.

Patterns for Dividing With Decimals

In this video, Alex learns to divide whole numbers by moving the decimal point.

Simplifying Algebraic Expressions by Combining Like Terms

Students will use order of operations in this video. They learn to combine like terms to simplify an algebraic expression.

The Bat-Eared Fox, Bilby and Banner-Tailed Rat

Watch a video about how ears affect the sense of hearing and learn about survival for savanna-dwellers bat-eared fox, bilby, and banner-tailed rat.…

Using Function Tables When Given Input and Output Values

Use this video to show students how they can use function tables to find exactly one output value for every input value.

Writing Out Decimal Expansion of a Square Root to Find Size of Irrational Numbers

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

Calculating Measurement of Exterior Angles of Triangles Using Substitution

Students are shown how to substitute measurements of interior angles of a triangle to calculate the degree of an exterior angle.

Count on a Number Chart to 120

In this video, Jada and Alex learn to count consecutive numbers on a number chart.

Elephant's Acute Sense of Hearing

Find information and a video about the elephant, an exceptional listener and communicator that uses its ears, trunk, and feet to detect infrasonic…

Finding Equivalent Ratios by Multiplying and Dividing

This video shows the process of finding equivalent ratios by multiplying and dividing a fraction by the same non-zero number.