Instructional Video6:04
Curated Video

How to Find the Area of a Trapezoid Using Triangles and a Rectangle

9th - 12th
In this math video we will learn how to find the area of a trapezoid using triangles and a rectangle. We will use a four part constructed response math test question to model how to find the area of a trapezoid by decomposing it into a...
Instructional Video2:20
Curated Video

How to Find the Area of a Parallelogram

9th - 12th
In this math video we will learn how to find the area of a parallelogram. We will begin by identifying the formula for the area of a parallelogram; A=bh. We will understand that bh represents b multiplied by h. We will review how to...
Instructional Video1:55
NUMBEROCK

Triangles

K - 5th
Skateboards, mountain climbing, billiards' Don't you just love this stuff? That's why NUMBEROCK put it all into this song about triangles that is filled with real-world connections. Triangles are all around us, so it is easy to make this...