Website
Primary Resources

Primary Resources: 2 D and 3 D Shapes

For Teachers Pre-K - 1st Standards
Here is a huge collection of teacher resources for teaching 2-D and 3-D shapes. Includes smartboard and PowerPoint presentations, as well as worksheets and helpful hints.
Whiteboard
ClassFlow

Class Flow: Geometry 2 D Shapes

For Teachers 6th - 8th Standards
[Free Registration/Login Required] This flipchart introduces basic geometric shapes and gives students practice finding geometric shapes in everyday objects.
Activity
Scholastic

Scholastic: Max's Math Adventures: Max's Fantastical Zoo

For Teachers 3rd - 5th
Use this rhyming description of Max's Fantastical Zoo to make some amazing animals from geometric shapes. There is a teacher's guide for easy lesson planning.
Interactive
Other

Bright Productions Web Designs: Shape Game

For Students Pre-K - 1st Standards
You will enjoy this shape game. It tells you the name of a shape and all you have to do is click on the correct shape. If you get confused you can have another try.
Website
PBS

Pbs Learning Media: Making Rock Candy

For Students 3rd - 8th Standards
In this video segment from Cyberchase, two friends make rock candy while learning about 2-D and 3-D shapes.
Lesson Plan
Better Lesson

Better Lesson: Filling in the Middle

For Teachers 2nd - 3rd Standards
Students use both area and perimeter to work with geometric shapes.