Identify squares, rectangles, and rhombuses. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.G.A.1 Understand that shapes in different categories

For this mini-lesson, you will learn about the definition of geometric shapes and view many examples. You can check out the interactive simulations to know more about the lesson and try your hand at solving a few interesting practice...

Students who have a clear understanding of the previous lessons can work on gallery problems of their choosing. This can be used as a good review or assessment.

Explore and measure a variety of quadrilaterals.

In this lesson plan on area and perimeter, 3rd graders will learn how to find the area and perimeter of rectangles by applying formulas.

An interactive site that instructs and demonstrates how to find the fourth angle of a quadrilateral. This site also has many links to other interactive lessons.