Measurement

Perimeter, Area, and Volume

Math Antics

Perimeter

Khan Academy

Perimeter and Area: The basics

Math Antics

Area

Khan Academy

Area of a Parallelogram

Khan Academy

Area of a Triangle

Circle Geometry

Radius, diameter, circumference & πLearn how the number Pi allows us to relate the radius, diameter, and circumference of a circle.

Labeling parts of a circleRadius, diameter, center, and circumference--all are parts of a circle. Let's go through each and understand how they are defined.

Area of a circleThe area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Math Antics

Circles, What is Pi?

Math Antics

Circles, Circumference and Area

Surface Area

Surface Area of a Box

Khan Academy

Surface Area of a Box Using Nets

Khan Academy

Surface Area Using Nets

Khan Academy

Making 3D Shapes from Nets

Mr. Molls Tutorial

Google Sites

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