Wolfram Research
Wolfram Math World: Geometry
This MathWorld tutorial provides detailed overviews of the concepts and theorems associated with geometry. Most of the Math World sites are extensive and some require higher math knowledge to understand, links to terms and topics are...
CK-12 Foundation
Ck 12: Molecular Geometry
[Free Registration/Login may be required to access all resource tools.] The following online tutorial explains the basis of VSEPR theory. It helps students predict the shapes of molecules and polyatomic ions using VSEPR theory and it...
CK-12 Foundation
Ck 12: Geometry Software for Constructions
[Free Registration/Login Required] Students explore the concept of using geometry software to construct geometric shapes by navigating through the interactive learning module and then answering questions that go along with the module....
Wolfram Research
Wolfram Math World: Geometry
This site provides an understanding of the many types of geometry.
Oswego City School District
Regents Exam Prep Center: Geometry Vocabulary Resources
A list of geometry definitions and a matching activity.
Oswego City School District
Regents Exam Prep Center: Coordinate Geometry Proofs
A lesson, practice activity, and teacher resource for exploring coordinate geometry proofs.
University of Saskatchewan (Canada)
University of Saskatchewan: Geometry
The University of Saskatchewan's Department of Mathematics and Statistics provides high school students with online tutorials and exercises on what they deem some of the most important topics in geometry: Triangles, and Circles and Other...
Exploratorium
Exploratorium: Geometry Playground
Colorful explorations of geometry, taken from a museum exhibit. With sections on the geometry of light, the geometry of movement, and the geometry of patterns. Includes photo essays, videos, and activities.
University of California
Geometry Junkyard
An interesting junkyard of geometry findings where people are free to add their own findings and sift through others' interesting additions.
Concord Consortium
Concord Consortium: Stem Resources: Molecular Geometry
Students work through animated models showing the effects that electron repulsions have on the shape of a molecule in this web-based activity. In addition, shared and unshared electron pairs are demonstrated to define a molecule's shape....
Massachusetts Institute of Technology
Mit: Blossoms: Using Geometry to Design Simple Machines
An MIT engineering professor offers a fun presentation on simple machines, specifically the geometry involved in building them. Students will learn about kinematics ("geometry in motion") and build their own simple machines with a...
![E workshop.on.ca: Effective Instr in Math, K 3: Geometry & Spatial Sense [Pdf] Professional Doc](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "E workshop.on.ca: Effective Instr in Math, K 3: Geometry & Spatial Sense [Pdf] Professional Doc")
Queen's Printer for Ontario
E workshop.on.ca: Effective Instr in Math, K 3: Geometry & Spatial Sense [Pdf]
This 455-page guide outlines and illustrates effective strategies for teaching geometry and related spatial concepts to children in kindergarten through grade 3.
University of St. Andrews (UK)
University of St. Andrews: Non Euclidean Geometry
The University of St. Andrews in Scotland provides an excellent site explaining Non-Euclidean geometry.
Texas Education Agency
Texas Gateway: Introduction to Coordinate Geometry
The students will use multiple representations of undefined terms on a coordinate plane to solve problems.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Geometry in the Plane
Twenty-four problems presented on a variety of Plane Geometry topics. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check...
Texas Education Agency
Texas Gateway: Coordinate Geometry: Parallel and Perpendicular Lines
Given characteristics of two lines, such as slopes and equations, the student will determine whether the lines are parallel, perpendicular, or neither.
University of Waterloo (Canada)
University of Waterloo: Cemc: Math Circles: 3 D Geometry Ii [Pdf]
This learning exercise provides a variety of 3D geometry questions requiring higher order thinking skills. Questions include; finding the surface area of a prism, surface area of pyramid, surface area of a sphere, and platonic solids.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Circle Geometry Properties
Investigate circles, namely their angles, chords, and tangents using this highly interactive Learn Alberta math. Explore a number of circle geometry properties that can be used to determine unknowns. Be sure to follow the link to the...
McGraw Hill
Glencoe: Self Check Quizzes Patterns in Geometry
Students answer multiple choice questions that explore patterns in Geometry. Hints and solutions are included.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Geometry of Quadratic Systems
Twenty-six problems present a variety of practice working with the geometry of quadratic systems. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
That Quiz
That Quiz: Practice Test: Geometry
This resource allows users to test their geometry knowledge.
Math Open Reference
Math Open Reference: Solid Geometry
A complete reference guide to solid geometry. The mathematics resource provides definitions and interactive activities that enhance further explanation.
Science U
Science U: Welcome to the Geometry Center!
Site provides information and activities on various aspects of geometry, from shapes to patters and symmetry. Make your own tetra puzzle or build an icosahedron in the classroom. Interactive and fun.
CK-12 Foundation
Ck 12: Geometry: Indirect Proof in Algebra and Geometry
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to write an indirect proof and provides examples of indirect proofs in Algebra and Geometry.
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