Curated OER
Unit Squares and Triangles
This is an interesting geometry problem. Given the figure, find the area of a triangle that is created by the intersecting lines. The solution requires one to use what he/she knows about coordinate geometry, as well as triangle and angle...
Curated OER
Perimeter of Scalene Triangle
In this geometry worksheet, 10th graders find the perimeter of scalene triangles, or triangles where the 3 sides are different lengths. There are 6 questions with an answer key.
Curated OER
Geometry and Spatial Sense
Students investigate geometric shapes in 2 and 3 dimensions. In this geometry lesson, students create a model chocolate factory working in groups and using an actual cake. Students take a quiz about measurement equations dealing with...
National Council of Teachers of Mathematics
The Math Forum: Suzanne's Mathematics Lessons 2001
This site by Suzanne Alejandre offers lesson plans, activities and resources covering topics in algebra, geometry, data analysis, number & operations, and measurement. The contents of this site are aligned with the NCTM standards and...
Other
Hpedsb: Geometry
This page of Geometry links addresses many of the Geometry expectations in the Ontario K-8 Math curriculum. There are simple sorting exercises for Grade One and Cartesian Graphing tasks for the intermediate grades.
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.
University of Regina (Canada)
University of Regina: Math Central: Geometry Activities
These fifteen different activities have students applying their geometry skills and knowledge. Activities are hands-on and contain possible solutions.
Other
Link to Learning: Geometry and Spatial Sense
Link to Learning is a site popular among Ontario teachers. This collection of sites addresses Geometry and Spatial Sense expectations in the Ontario Math curriculum for Kindergarten to Grade 8.
Other
Link to Learning: Geometry and Spatial Sense
Link to Learning is a site popular among Ontario teachers. This collection of sites addresses Geometry and Spatial Sense expectations in the Ontario Math curriculum for Kindergarten to Grade 8.
Other
Teach Net: Brain Binders
Brain binders are great teacher sources for problem solving and critical thinking with geometry. Students fold sheets of paper to create solid colors on each side. Various levels are included starting with two folds through five folds.
Scholastic
Scholastic: Do It Yourself Patchwork Gifts
Students will sharpen their geometry skills when they make these holiday gifts. This site offers hands-on activities with geometry skills interwoven.