Curated OER
Pop-it...Stop-it
Students observe how certain geometric shapes can be used to make some structures rigid and others flexible. The activity involves construction of a 30-60 right triangle, folding while following directions, and identifying polygons.
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Connecting Formulas Related to Geometric Figures
Students identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
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Transformational Geometry Using the Geometer's Sketchpad
Students complete a webquest on the various types of symmetry. Using a computer, they explore the concepts of transformational geometry and identify points, segments, lines and planes. They experiment with the rotation of a quadrilateral...
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Symmetry and Geometric Shapes on Campus
Build on your learners' previous knowledge of geometric shapes and symmetrical figures. Then set them out to take photos of geometric shapes on campus. They assess whether the photos contain symmetry or not.
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Area of Polygons
Students engage in a lesson that is about the concept of polygons and focuses upon finding the area. They use formulas provided in the lesson in order to solve problems given by the teacher for independent practice. Geometric figures are...
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Crossword: Geometric Shapes
Using a word bank, mathematicians fill out a crossword puzzle using 9 clues. Each clue describes a shape, using details such as the number of sides, angle degrees, and the shape category. For example: "A quadrilateral with four equal...
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Lengths of Horizontal and Vertical Line Segments
Use this lengths of horizontal and vertical line segments practice worksheet to have learners sharpen their problem solving skills as they solve six story problems.
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Polygons in Symmetry: Animal Inventions
Fourth graders use polygons to create animal figures with symmetry. In this polygons and symmetry activity, 4th graders create a symmetrical animal collage by cutting and gluing geometric shapes and figures from math activities.
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Geometry Practice: Transformations, Isometries, and Tessellations
Five pages for geometry practice relating to symmetry provide mathematicians with exercises on transformations and symmetry, properties of isometries, compositions of transformations, tessellations with regular polygons, and other...
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Area Formulas
Teach your pupils to calculate the area of different polygons. Learners create formulas to solve their problems. They use the TI navigator to graph their shapes and observe the change in area.
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Quadrilaterals
In this geometry worksheet, 10th graders solve problems with quadrilaterals. They calculate the sum of the angles, find missing angles and identify properties of quadrilaterals. There are 16 questions with an answer key.
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Quadrilaterals: Four-sided Figures
Fifth graders engage in a variety of hands-on and technology-rich activities involving the classification of quadrilaterals. They utilize protractors and rulers to investigate the characteristics of various types of quadrilaterals. They...
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Similar Figure Word Problems
In this similar figure worksheet, students use similar figures and indirect measurement to determine distance. They use proportions of similar figures to determine scale figures. This two-page worksheet contains 8...
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Exploring Tessellations
Fifth graders examine how to make tessellations. In this tessellation lesson, 5th graders review the meaning of the word "polygon" while the teacher shows them various examples. They practice making tiling patterns or tessellation's with...
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Geometry Vocabulary
In this geometry vocabulary worksheet, 10th graders are given different angles with different names. They must match the correct angle with the correct name. There are 45 questions dealing with angles, there is an answer key.
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Vocabulary Matching
In this geometry activity, students math the shape to it's name. The shapes are drawn out with a small example to trigger the memory of the students. There are 33 questions with an answer key.
Pennsylvania Department of Education
A Geometric Scavenger Hunt
Fifth graders connect their knowledge of polygons and polyhedrons. In this geometric shapes lesson, 5th graders identify and classify two- and three-dimensional objects. Students construct a polyhedron out of polygons and describe their...
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Geometric Shape Cakes
Students become problem solvers and communicate geometrical ideas. For this geometrical shapes lesson, students make a cake template from geometrical shapes.
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Constructing Quadrilaterals
High schoolers investigate quadrilateral construction in this geometry lesson plan. They use Cabri Jr. to construct the different quadrilaterals from the quadrilateral hierarchy given minimal definitions. The lesson plan reinforces the...
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Probability Concepts (Practice 20.2)
In this probability worksheet, students solve 16 problems pertaining to probability and likely, less likely, certain and impossible outcomes.
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Naming Shapes
Students study geometric shapes and practice naming them properly. In this geometry instructional activity, students work in groups to give definitions of the vocabulary to each other in their own words. Students also visit a lower grade...
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Reflections of Symmetry
Students use video and the Internet to identify examples of bilateral and radial symmetry in the world around them. They create symmetrical reflection designs using pattern blocks and paper.
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Shapes Are Everywhere
Third graders use various shapes to identify polygons and understand symmetry. They explore pattern blocks noticing their similarities and differences, then share with other team members. They draw 3 polygons in their journals and...
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The Quirky Quadrilateral
Fourth graders identify and classify different triangles and quadrilaterals. Then they demonstrate an understanding of plane and solid geometric objects and use this knowledge to show relationships and solve specific problems. Students...