Second graders will be able to identify 2-dimensional shapes and tell the number of vertices and sides.

This interactive media source asks students to determine which picture shapes are two-dimensional.

This task challenges a student to demonstrate understanding of the attributes of two-dimensional shapes.

The students will make the connection between 2-D and 3-D shapes using modeling clay and geometric solids and participate in an interactive web lesson. Students will make predictions about what 2-D shape they think will be made when they...

Analyze various shapes according to their reflective and rotational symmetries.

Describing 3D shapes in Pre-K and Kindergarten is now an expectation as it is a key geometry standard. This resource contains 3D shapes activities and resources for practicing this standard. Included are chants, videos, games, poetry,...

Two and three-dimensional geometric shape are explored in these exercises. Each activity has teacher notes, activity instructions, and a worksheet when necessary.

Demonstrates how to calculate the area of two-dimensional shapes using formulas. Covers parallelogram, triangle, trapezoid, and circle. Includes a video modeling how to find the area of a circle and a triangle. [0:59]

This site provides an in-depth definition of a two-dimensional figure and a three-dimensional figure. Related terms include arcs, vertices, polygon, and many more.

Students will tell if a shape is 2-dimensional or 3-dimensional.