Other
Nazca Figures: Inca Lines. Inca
Text and photographs focus on various figures and geometric shapes: Nazca Candleabra, Nazca Whale, Nazca Rose, and Nazca Hummingbird. Includes a chart of all Nazca designs.
abcteach
Abcteach: Geometry
[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...
CPALMS
Cpalms: Size It Up
[Free Registration/Login Required] This is a formative assessment task where students are asked to use geometric solids to model each of four tent shapes on a worksheet and use mathematical language to describe them. Samples of student...
University of Cambridge
University of Cambridge: Nrich: Dicey
If you can visualize a cube and turn it around in your mind, then this is the challenge for you. This one page website has the solution available to check your thinking.
History is Fun
Jan Brett: Geometric Solids Flashcards Pdf
Print out these colorfully illustrated PDF file pages to practice learning your basic three dimensional geometric solids. Fold them in half and one side shows the shape while the other side shows the shape with the correct name. Put them...
Math Is Fun
Math Is Fun: Making 3 D Solids
This tutorial features templates and instructions to make the following solids: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.
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.
National Council of Teachers of Mathematics
Nctm: Figure This: Envelopes
Explore tessellations with real world applications in this activity from the NCTM Math Challenges for Families series. Figure out what shape you would use to create a legal envelope from a single sheet of paper. Then discover how...
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.
OER Commons
Oer Commons: Review Quiz
Students reflect on their work and apply what they've learned about the characteristics of geometric figures. Includes a learning game to be played with a partner.
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.
National Council of Teachers of Mathematics
The Math Forum: The Cylinder Problem: High School Lesson
Using an engaging approach, this lesson requires students to record the volume of cylinders as a function of the radius. Students will construct and measure the volume of several cylinders and then begin comparing these shapes.
University of Cambridge
University of Cambridge: Nrich: Symmetry Challenge
Sharpen your logic, symmetry, and pattern recognition skills while working on this challenge. Solution included.
ClassFlow
Class Flow: Solids
[Free Registration/Login Required] In this flip chart, students apply geometric sense by using the properties of two-dimensional and three-dimensional shapes to solve mathematical problems involving area and volume.
University of Cambridge
University of Cambridge: Nrich: Christmas Presents
Improve your logic and net recognition skills with this learning game. Solution included.
University of Cambridge
University of Cambridge: Nrich: Making Boxes
Have fun and learn by making a box and then find out its maximum volume as well as other problem-solving activities, including making a table of your results and drawing a graph.
Common Core Sheets
Common Core Sheets: Geometry 7.g.3 Worksheets
Print or create worksheets to assess students' understanding of geometrical figures and describe the relationships between them.
CK-12 Foundation
Ck 12: Geometry: Rotations
[Free Registration/Login may be required to access all resource tools.] This concept introduces geometric rotations.
Illustrative Mathematics
Illustrative Mathematics: Make Your Own Puzzle
Learners will cut a square into four pieces, and then will put those pieces in an envelope for another student to put together. The purpose of this task is to give students a hands-on experience with composing and decomposing geometric...
Education Development Center
Think Math: Getting an Angle on Geometry [Pdf]
In this lesson on geometry and polygons, you use origami to use various polygons to make a heart. Included in this PDF lesson is vocabulary worksheet with answers provided.
Purple Math
Purplemath: Geometry Word Problems: Introduction
Introduces how to set up and solve simple geometric-figure word problems. Includes advice regarding formulas to memorize.
Curated OER
Bubbles
"What is so fascinating about bubbles? The precise spherical shape, the incredibly fragile nature of the microscopically thin soap film, the beautiful colors that swirl and shimmer, or most likely, a combination of all these phenomena?...