Activity
Annenberg Foundation

Annenberg Learner: From Corner to Corner

For Students 2nd - 5th Standards
Measure the lengths and diagonals of three squares with a ruler. Look over your measurements and try to come up with a rule of thumb for estimating the length of a diagonal if you know the length of a side.
Unit Plan
Khan Academy

Khan Academy: Area of Rectangles

For Students 2nd - 4th Standards
Find area of rectangles and squares by multiplying side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Create Rectangles With a Given Area

For Students 2nd - 4th Standards
Practice finding the area of rectangles by counting unit square. Create rectangles with a given area by covering unit squares. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Unit Plan
Khan Academy

Khan Academy: Counting Unit Squares to Find Area Formula

For Students 2nd - 4th
This tutorial includes a video, questions and explanations around using unit squares to see why multiplying side-lengths can also find the area of rectangles.
Unit Plan
Khan Academy

Khan Academy: Area and the Distributive Property

For Students 2nd - 4th
Use area models to represent the distributive property in finding area of rectangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Understanding Area

For Students 2nd - 4th
Compare the amount of unit squares that cover figures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints related to the concept of area.
Unit Plan
Khan Academy

Khan Academy: Compare Areas by Multiplying

For Students 2nd - 4th
Compare the areas of rectangles represented in images or contexts. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Name Shapes 4

For Students 1st - 3rd Standards
Practice identifying quadrilaterals, pentagons, hexagons, and octagons. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.
Unknown Type
Khan Academy

Khan Academy: Identify Parts of 3 D Shapes

For Students 2nd - 4th Standards
Identify the parts of 3D shapes in this assessment.
Unknown Type
Khan Academy

Khan Academy: Identify Geometric Solids (3 D Shapes)

For Students 2nd - 3rd Standards
Practice identifying 3D shapes.

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