Illustrative Mathematics
Lines of Symmetry for Triangles
What can symmetry tell us about triangles? After looking at four examples, learners will come to realize that lines of symmetry are different for equilateral, isosceles, and scalene triangles. Use this guided practice activity as an...
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Symmetry
Second graders find the lines of symmetry in pattern blocks and alphabet letters. In this symmetry lesson, 2nd graders discuss what symmetry is, view examples of lines of symmetry and apply what they have learned by finding the line of...
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Symmetry
Third graders find symmetry in nature. In this symmetry lesson, 3rd graders discover that symmetry is in nature and our everyday world. Students examine the alphabet for symmetrical letters then create their own artwork showing symmetry.
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Symmetrical Geometry Paintings
Here is a clever, cross-curricular instructional activity that combines art and geometry. Learners design a painting that uses geometrical shapes and is symmetrical. Sponge-shaped geometrical figures are used to design half a page and...
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Symmetry and Tangrams
Sixth graders build figures out of tangrams. For this symmetry lesson, 6th graders view tangrams and identify the polygons included in them. Students divide into groups, identify their tangram pieces, define the lines of symmetry, and...
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A World of Symmetry
Students identify lines of symmetry. In this symmetry instructional activity, students create objects and identify their lines of symmetry. They answer questions about lines of symmetry. Students cut shapes out of cookie dough and...
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Lines of Symmetry
First graders create symmetrical designs using a computer program. In this lines of symmetry lesson, 1st graders review their symmetrical designs and discuss other ways symmetrical designs can be made. Students work in pairs and use...
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Let's Learn about Symmetry
Students explore symmetry in architecture. In this cross curriculum art and architecture lesson, students fold paper to illustrate symmetry and identify symmetrical and asymmetrical shapes. Students observe photographs or take a walk...
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Symmetry
Learners explore symmetry. In this geometry lesson, student identify and define bilateral symmetry, radial symmetry, pentagonal symmetry, hexagonal symmetry, and cubic symmetry. Students construct examples of these types of symmetry and...
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Symmetry, Similar & Congruent Shapes
Fifth graders identify lines of symmetry., similar and congruent shapes. They use construction paper to create their own symmetrical shapes. Students create stained glass frames containing symmetrical, congruent and similar shapes.
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Equilateral Triangle Symmetries Closure Activity
Students explore the symmetries of an equilateral triangle. In this lesson on symmetry, students determine the composition of given equilateral triangles using both rotational and reflectional symmetries.
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Simply Symmetry
Learners are introduced to the concept of symmetry by examining different shapes and folding them into equal halves. They work in small groups focusing on finding the lines of symmetry of one specific shape. A symmetry booklet is made by...
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Symmetry in My World
Second graders demonstrate understanding of symmetry and identify objects that have symmetry. They use a mirror to get a visual illustration of what symmetry is. They create a collage of symmetrical pictures they find in magazines.
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Identifying Lines of Symmetry and Creating Reflections over a Line
Fifth graders review the concept of a line of symmetry by using pieces of paper that have pictures such as, letters of the alphabet, polygons, and designs made from polygons in order to determine if they have symmetry. The fine, two-hour...
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Using Symmetry to Create a Community Quilt
Students create a class "quilt" made of paper. In this hands-on symmetry lesson, students fold paper to create symmetrical figures then work in groups to color quilt patches that will form together to make a symmetrical class quilt.
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Simply Symmetry
Students make pictures with squeeze bottles of tempera paint, and fold the paper to show lines of symmetry. They complete a T chart to showing lines of symmetry. They access a website to complete a symmetry activity.
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Parallel and Perpendicular Lines
Fourth graders create a dance with a partner that shows parallel and perpendicular lines. For this lines lesson plan, 4th graders create symmetrical designs and line pairs with their partner.
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Polygons
This resource provides 5 different worksheets on the topic of polygons and symmetry. These worksheets cover rotational symmetry, lines of symmetry, symmetry of regular polygons, special quadiralaterals, and polygon transformation. The...
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Lines of Symmetry
Fifth graders explore the concept of symmetry using lines drawn through different shapes. The worksheet that is included in the lesson should be used to chart the lines of symmetry for the different shapes drawn.
EngageNY
Congruence, Proof, and Constructions
This amazingly extensive unit covers a wealth of geometric ground, ranging from constructions to angle properties, triangle theorems, rigid transformations, and fundamentals of formal proofs. Each of the almost-forty lessons is broken...
John Lentine
Butterflies and Bugs
Symmetry, line, shape, art, and math are all connected through a fun hands-on craft. Included are instructions to a classic activity, where learners create butterflies to show symmetry in nature and then discuss symmetry in math. It is...
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Symmetries of a Quadrilateral II
Learners investigate the symmetries of a convex quadrilateral in a collaborative activity. Rigid motion and complements are explored as learners analyze different cases of reflections across a line.
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Angles Activities
A series of geometry worksheets have mathematicians constructing, dissecting, overlapping, and measuring as they analyze angles in various contexts. Learners use symmetry and reflections in a compass rose to write instructions on...
School Mathematics Project
Resource Sheets
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...