University of Texas
Inside Mathematics: Quilt Making [Pdf]
This task challenges a student to demonstrate understanding of the concept of two dimensional shapes and their properties.
University of Cambridge
University of Cambridge: Nrich: Instant Insanity
Excellent interactive challenge working with cube nets to stack them in a specific order. Manipulate the cubes online to solve the problem.
University of Cambridge
University of Cambridge: Nrich: Up and Down Stairs
Work with this cube problem and see if you can find a pattern. Then you can check your solution with solutions already submitted.
Shodor Education Foundation
Shodor Interactivate: Surface Area of a Rectangular Prism
This lesson teaches students how to find the surface area of rectangular prisms.
CK-12 Foundation
Ck 12: Elem Math: Identifying Vertices Edges and Faces in 3 D Shapes
[Free Registration/Login may be required to access all resource tools.] The video briefly defines the 3D figure given including the edge, face, and vertices, followed by determining the number of vertices in the rectangular prism. The...
National Council of Teachers of Mathematics
Nctm: Illuminations: 4.4 Developing Geometry Understandings With Tangrams
Students use this interactive website to explore tangrams by connecting the pieces.
PBS
Pbs Learning Media: Squares
The CyberSquad builds a raft out of squares in order to cross a river in this Cyberchase video [2:05] segment.
Shodor Education Foundation
Shodor Interactivate: Tessellate!
This creative applet allows you to tessellate variations you create starting with either a triangle, rectangle or hexagon. Directions are only a click away.
CK-12 Foundation
Ck 12: Elem Math: Counting Flat Surfaces in Various 3 D Shapes
[Free Registration/Login may be required to access all resource tools.] The video shows how to count the number of flat surfaces on various 3D shapes. The video is followed by practice problems.
CK-12 Foundation
Ck 12: Elem Math: Identifying and Naming 3 D Figures
[Free Registration/Login may be required to access all resource tools.] The video briefly shows and describes a cube, rectangular prism, triangular prism, and a cylinder and then determines what 3D figure is shown through process of...
Sophia Learning
Sophia: Finding Area With Squares: Lesson 4
Step by step, this video lesson [4:34] will show you how to add up the number of squares that cover an object in order to find the area of a figure. It is 4 of 7 in the series titled "Finding Area with Squares."...
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: Counting Flat Surfaces in Various 3 D Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to count the number of faces in various three dimensional shapes.
CK-12 Foundation
Ck 12: Elem Math: Counting the Number of Basic 2 D Shapes in a Set of Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on identifying various 2D shapes in a set of figures.
Scholastic
Scholastic Lesson Plan: New Way to Measure Area
This article describes a new approach to teaching children more than just memorizing a formula to find area and hope they don't confuse it with perimeter. This approach involves a project with real life situations....
CK-12 Foundation
Ck 12: Elem Math: Overview of Flat Surfaces of 3 D Shapes
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the flat surfaces or faces of three dimensional shapes.
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.
University of Cambridge
University of Cambridge: Nrich: Net Cuts
In this enrichment game, the nets for nine solids are displayed. The twist is that each net has been cut into two pieces. The challenge is find the pieces that go together.
Math Playground
Math Playground: Shape Inlay Game
Drag and drop shapes into a puzzle to explore tessellations.
National Council of Teachers of Mathematics
Nctm: Illuminations: Volume of a Cube
"The volume of a cube can be developed by considering unit cubes, a single row (longs) of unit cubes or a single layer (flats) of cubes using this applet." This easy software makes it possible to easily construct a cube and take it...
SEN Teacher
Sen Teacher: Nets
Generate different "nets" for paper construction of common three-dimensional shapes: cube, cuboid, pyramid, cone, tetrahedron, cylinder, octahedron, rhombic prism, dodecahedron, pentagonal prism, and pentagonal prism.
CK-12 Foundation
Ck 12: Elem Math: Identifying and Naming 3 D Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on identifying and naming three dimensional figures.
Illustrative Mathematics
Illustrative Mathematics: 3.md the Square Counting Shortcut
This is a rectangle subdivision task; ideally instead of counting each square. students should break the letters into rectangles, multiply to find the areas, and add up the areas. Aligns with 3.MD.C: CCSS.Math.Content.3.MD.C.6 Measure...