Curated OER
Discovering Perimeter
Twelfth graders apply perimeter measurement to items found in newspapers and calculate the cost in terms of feet or yards. They share answers and explanations with classmates.
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Geometry Slideshow
Sixth graders create slideshows of geometric terms. They use images taken with digital cameras or scanned from magazines.
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What a SHAPEly Fit!
Students identify and explore the attributes of polygons. They design and create a quilt square using polygons, and produce a class quilt.
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Governor's Garden
Students review types of polygons and list several examples of each. They assume the role of a landscape artist interviewing for a job. They create sketches of their plans for six polygonal gardens and write an expository paragraph...
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Explore Three-Dimensional Shapes
Students are assigned to shape groups and explore three-dimensional shapes. They review math skills and two-dimensional shapes.
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Shape Up!
Students investigate measurement through the use of literature through this series of lessons.
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Hands-On Geometry
Tenth graders construct a variety of geometric shapes and designs using a Mira, Clinometer and Geometry Flash Cards. They complete a worksheet.
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A Wall of Symmetrical Shapes
Students explore line(s) of symmetry in polygons during a hands-on activity and a Student Web Lesson. They build a wall of symmetrical shapes designed and drawn by students.
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Polygons And Polyhedra
Pupils recognize and name two-dimensional and three-dimensional geometric figures. One group of students will extend the study of polygons to quadrilaterals while another group of pupils will extend the study of polygons to quadrilaterals.
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Polygons and Plane Figures
Learners choose a polygon to define and describe, and use Power Point and the Internet to present their polygon.
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Lesson Exchange: Polygons (Middle, Mathematics)
Students discover the relationship between the sides of a polygon and the number of diagonals that can be drawn from one vertex, the number of triangles that those diagonals form, and the sum of the interior angles of that polygon.
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Lines of Symmetry
Fourth graders demonstrate lines of symmetry using polygons, pentominoes, and block letters of the alphabet. They describe, identify, and analyze characteristics and properties of geometric shapes.
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Shapes Are Everywhere
Third graders explore pattern blocks noticing their similarities and differences and share their observations with others. They classify shapes by discussing sides and angles and combine pieces to make new shapes.
Pennsylvania Department of Education
Creating Polygons
Pupils describe, make and compare polygons. In this creating polygons lesson, students identify properties of quadrilaterals and describe common features of two dimensional shapes.
Pennsylvania Department of Education
Tangram Challenges
Students explore geometric concepts by working with Tangram Puzzles. In this Tangram challenge lesson plan, students use problem-solving tasks that involve physical manipulatives. Students select a picture and use all seven pieces of the...
Curated OER
Self Check Practice
In this planes worksheet, high schoolers solve 5 multiple choice problems. Students determine which planes intersecting create a given line. High schoolers determine which point is coplanar with three other ones.
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Polygons Defined
Fourth graders explore polygons. In this polygon activity, 4th graders sort polygons according to their properties. Students discover the connection between polygons and the Greek language.
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Geometric Shapes at the OK Corral
Students explore regular geometric shapes. In this shapes lesson, students investigate geometric shapes in the world around them. Students differentiate between regular and irregular shapes.
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Congruency Basics
Fourth graders investigate congruent shapes. In this congruency lesson, 4th graders explore examples of congruent shapes. Students determine how to check for congruency by sliding or flipping the shape.
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Meet the Polygon Family
Fourth graders investigate regular polygons. In this regular polygon lesson, 4th graders explore the attributes of different polygons. Students work in groups to complete a KWL chart regarding polygons.
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How Many Regular Polyhedrons Are There In This or Any Universe?
Students examine the idea of "regularity" as it pertains to geometry. For this geometry lesson students complete several assignments that are part of trihedral angles and regular polyhedrons.
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Map-Making Basics
Students study maps. In this geography and art lesson, students create their own map of the classroom.
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Tessellations: An Application of Simple Regular Polygons
Tenth graders identify homogeneous tessellations. In this model-based lesson, 10th graders make and identify homogeneous tessellations, both regular and semi-regular.