A learning resource that incorporates augmented reality (AR), using a camera, where students explore the volume and surface area of 3-D figures. The home page for this site has a PDF resource that explains how AR works and provides...

[Free Registration/Login Required] Place the shapes on the picture outline and collect coins for each correct answer.

Learn about several three-dimensional geometric shapes and the terminology used to describe them. Learn how to calculate their surface area and volume, and explore their mathematical properties.

Learn about platonic solids, a special type of polyhedra. Read a definition, make three-dimensional models using printouts, and play with an interactive animation, which will show you the faces, vertices, and edges on platonic solids:...

[Free Registration/Login Required] This resource has an assortment of teacher-created geometry activities for elementary and primary students. Printable two-dimensional shapes, area and perimeter worksheets, board games, rules and...

Third graders develop their understanding of the importance of different 2-dimensional shapes by finding real world examples.

[Free Registration/Login may be required to access all resource tools.] Students practice counting sides and vertices in various two dimensional shapes.

Cross-sections are one way that two-dimensional objects are connected to three-dimensional objects.

[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.

The 'Platonic solids' are three-dimensional shapes formed by putting together identical regular faces. Every corner and every edge is identical to every other corner and edge. There are five such 'solids': the tetrahedron, cube,...

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.

An architectural modeling lesson that first demonstrates how architects combine forms to create buildings and then provides instructions for building architectural models. Includes links to architectural terms and to useful illustrations...

The instructional tool explores various geometric solids and their properties. Student can manipulate and color the different shapes. Learners examine the edges, faces, and vertices of the different solid figures.

Help Peg and Cat move the net to collect the jewels while you hunt for solid shapes.

Percy the Penguin needs to clean up his 3D shaped toys. Can you help him?

Students can use this applet to explore different 3-D objects. Different objects can be chosen, rotated, and viewed from a variety of sides. [Requires Java.]

Students use the colored portion of the 2-D drawings to color the correct face of the 3-D model. This applet consists of 20 problems. [Requires Java.]

Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.

An excellent compilation of activities that engage parents and children in math explorations at home. Detailed lessons covering a wide range of math topics such as fractions, measurements, money, data collection, and math in newspapers....

This interactive exercise focuses on discovering the relationships between two and three-dimensional shapes.

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.

Students use this App to draw two-dimensional shapes and representations of three-dimensional cubes. [Requires Adobe Reader.]

Provides a list of area and perimeter formulas for two-dimensional shapes and volume and surface area formulas for three-dimensional solids.

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.