Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to...

In this lesson plan, 7th graders answer word problems to determine the area of a circle.

Brush up on your math skills relating to the area of rhombuses then try some practice problems to test your understanding.

Brush up on your math skills relating to the area of triangles then try some practice problems to test your understanding.

Eighth graders are presented with a drawing of a large square inscribed by a circle which is itself inscribed by a second square. They are asked to find the area of the circle outside the smaller square and compare it to the area of the...

Practice matching 2D nets to the 3D shapes the fold up into. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this lesson plan, 7th graders use their knowledge of formulas to determine the area and circumference of a circle.

Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.