CK-12 Foundation
Ck 12: Elem Math: Counting Straight Lines and Curves in Various Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on counting lines and curves in various two dimensional shapes.
CK-12 Foundation
Ck 12: Elem Math: Counting Vertices and Sides in Various Shapes
[Free Registration/Login may be required to access all resource tools.] Students practice counting sides and vertices in various two dimensional shapes.
CK-12 Foundation
Ck 12: Elem Math: Determining Whether a Given Shape Can Be Tessellated
[Free Registration/Login may be required to access all resource tools.] Students watch a video to determine if a two dimensional shape can be tessellated and then take a quick assessment to test their skills.
ClassFlow
Class Flow: Shapes
[Free Registration/Login Required] Use this flipchart to identify and name familiar 2d/3d shapes.
National Council of Teachers of Mathematics
Nctm: Figure This: Cut the Cake
A math challenge where geometry, measurement, and problem solving meet. Explore the properties of three dimensional shapes when you discover how six friends can equally divide a nine inch square chocolate cake. A one page activity from...
NumberNut
Number Nut: Shapes, Symbols, and Colors: 3 D Shapes
This lesson describes three dimensional shapes and provides two interactive practice activities.
Beacon Learning Center
Beacon Learning Center: The Facts Please, Mr. Mumble
This interactive web lesson teaches students about two-dimensional shape attributes.
PBS
Pbs Learning Media: Making Rock Candy
In this video segment from Cyberchase, two friends make rock candy while learning about 2-D and 3-D shapes.
Alabama Learning Exchange
Alex: What Shape Are You?
This lesson plan walks learners through an exploration of two- and three-dimensional shapes. Students will create a PowerPoint and poster of themselves as a chosen shape. It also gives assessment and remediation ideas as well as ways to...
Annenberg Foundation
Annenberg Learner: Shadows
Can you judge an object by its shadow? Use your mental rotation skills to determine if a shadow can be produced by a particular shape.
ClassFlow
Class Flow: Shapes Congruent
[Free Registration/Login Required] In this lesson students, will develop an understanding of geometric concepts and use them to identify, measure and compare a variety of two-dimensional and 3-dimensional shapes using models, pictures,...
NumberNut
Number Nut: Shapes, Symbols, and Colors: 2 D Shapes
Did you know that two-dimensional shapes are also called polygons? This lesson describes the various 2-D shapes and includes two interactive games to reinforce skills.
National Council of Teachers of Mathematics
Nctm: Figure This: Visualizing
Is seeing believing? Explore visualizing and spatial reasoning with three dimensional shapes in this challenge from the NCTM Math Challenge for Families collection. Discover why visualization is essential skill in real world situations.
ClassFlow
Class Flow: Soma Cube
[Free Registration/Login Required] In this flipchart, students use the drawing tools in Activstudio to create three dimensional shapes using interactive cubes.
ClassFlow
Class Flow: Nets
[Free Registration/Login Required] In this flipchart, students explore geometric sense by interacting with plane diagrams that create a three-dimensional shape.
Shodor Education Foundation
Shodor Interactivate: Cross Sections
This lesson utilizes the concepts of cross-sections of three-dimensional figures to demonstrate the derivation of two-dimensional shapes.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.4 Connections Between Two and Three Dimensions
Cross-sections are one way that two-dimensional objects are connected to three-dimensional objects.
ClassFlow
Class Flow: Two Dimensional Shapes Identify and Match
[Free Registration/Login Required] This flipchart helps students to analyze and compare various two-dimensional shapes according to the vertices, sides and parallel lines. It features "containers" created in Version 3 (can be used with...
Other
Bright Hub Education: Two Dimensional Art Activities
You don't have to be a trained artist to create beautiful two and three-dimensional art projects with your preschoolers. Many simple activities, such as painting and coloring, can be modified to include sensory elements to increase...
E-learning for Kids
E Learning for Kids: Math: Group of Pyramids: Polygons and Temperature
Learn about 2D shapes and temperature with King Toot.
University of Cambridge
University of Cambridge: Nrich: Triangles to Tetrahedra
Given an unlimited number of a specific type of equilateral, isosceles, and right triangles create as many tetrahedra as are possible. Includes printout.
Texas Instruments
Texas Instruments: Copying an Angle
Explore relationships (including congruence and similarity) among classes of two- and three-dimensional geometric objects, make and test conjectures about them, and solve problems involving them.
PBS
Pbs Learning Media: Chicken Blast Off Peg + Cat
Use this game resource to help children foster the skills of using 3-D shapes to build a spaceship that is just the right size and shape for its passengers.
Other
Building Houses With Side Views
In this resource, 2-D views and 3-D figures are explored. Students build houses consisting of cubes using the given top, front, and right views. [Requires Java.]