Activity
Rice University

Rice University: Cynthia Lanius: No Matter What Shape Your Fractions Are In

For Teachers K - 1st Standards
Four basic geometric shapes - the triangle, parallelogram, trapezoid, and hexagon - are examined to determine how many of one shape fits "inside" another. For instance, how many triangles are "in" a hexagon. Ten questions with solutions...
Interactive
Doina Popovici

Math Play: 2 D Shapes Jeopardy

For Students 2nd - 3rd Standards
Review basic facts and properties of two-dimensional shapes in this interactive game.
Activity
NumberNut

Number Nut: Shapes, Symbols, and Colors: Identifying Traits

For Students 3rd - 5th
Explains how traits are used in Math and in Science to sort and compare the properties of objects and substances.
Unit Plan
Shmoop University

Shmoop: Basic Geometry: 3 D Objects (Prisms, Cylinders, Cones, Spheres)

For Students 9th - 10th Standards
The geometry resource investigates three-dimensional objects. Objects include prisms, cylinders, cones, and spheres. Detailed examples and practice exercises are included.