Lesson Plan
Curated OER

Reflections in the Plane

For Teachers 9th - 12th Standards
Have your class explore the concept of reflections as they use Cabri Jr. to construct a triangle and reflect it over a line. Learners reflect shapes across the coordinate plane and across the lines y = x and y = -x.
Lesson Plan
Curated OER

Transformations

For Teachers 9th - 11th
Several practice exercises suitable for any geometry class working on transformation, symmetry, and tessellation -- especially visual representations of image translation, rotation, and reflection, symmetry, tessellations and tangrams --...
Lesson Plan
Curated OER

Reflections

For Teachers 9th - 10th
Students investigate the concept of reflectons. They investigate how an image has a reflection that is symmetrical. They also choose household objects in order to have real life application for finding lines of symmetry.
Lesson Plan
Curated OER

Transformational Geometry Using the Geometer's Sketchpad

For Teachers 6th - 8th
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...
Worksheet
Curated OER

Rotational Symmetry

For Students 3rd - 5th
In this math instructional activity, students examine the shapes given in two dimensions. They determine which ones are symmetrical to each other.
Worksheet
Curated OER

Finish Decorating the Gingerbread Man

For Students Pre-K
In this preschool worksheet, students finish decorating a black line picture of a gingerbread man. They see one half of the gingerbread man on the right side and they draw in the other side.
Lesson Plan
Curated OER

Tree of Life Mandala Print

For Teachers K - 5th
Learners create a Tree of Life. In this visual art lesson, students explore mandalas. Learners investigate the concepts of balance and symmetry while designing their own unique Tree of Life.
Lesson Plan
Curated OER

Introduction to Fractals: Infinity, Self-Similarity and Recursion.

For Teachers 9th - 12th
This lesson introduces students to the ideas involved in understanding fractals. They develop a sense of infinity, self-similarity and recursion and
Worksheet
Curated OER

Snowflake Symmetry

For Students 5th - 6th
For this symmetry worksheet, students analyze a picture of a hexagon folded into sixths with black parts to be cut out. Students draw what the snowflake will look like when it is unfolded.
Lesson Plan
Curated OER

WonderFoam Collagraph Prints

For Teachers Pre-K - 12th
Experiment with your very own printmaking blocks using foam sheets! Your class can create a beautiful pattern on their stamp with various shapes, symmetrical or not. Printing these might resemble Italian or Spanish tile patterns, or a...
Worksheet
Curated OER

Two Halves Make a Whole

For Students 1st - 2nd
In this whole and parts learning exercise, students study the shapes that each have a line of symmetry. Students draw the missing half so that each half is the same. Students then write if a diamond has more than 1 line of symmetry.
Lesson Plan
Curated OER

Bug Jars

For Teachers 2nd - 4th
Students explore symmetry.  Students observe a variety of bug and plant drawings, then draw a bug jar. Students observe bugs from the top of the jar for a symmetrical view, and the side of the jar for an asymmetrical view. ...
Lesson Plan
Curated OER

Symmetrical Journals

For Teachers K - 3rd
Learners identify symmetrical shapes around their classroom and make symmetry journals. In this symmetry lesson plan, students make drawings of symmetrical shapes inside their journals.
Lesson Plan
Curated OER

Transformation

For Teachers 3rd
Third graders investigate symmetry by reflecting objects in different angles. In this geometrical transformation lesson, 3rd graders define the terms translation, rotation and reflection in order to physically turn geometric...
Lesson Plan
Curated OER

Mine Is! Is Yours?

For Teachers 1st
First graders engage in a lesson which teaches the concept of symmetry through the use of letters in the student's name. They use a piece of yarn to see if they can make symmetrical pieces out of their own names.
Lesson Plan
Curated OER

Parabolas

For Teachers 9th - 12th
Students investigate parabolas and their equations.  In this parabolas and their equations lesson plan, students graph quadratic equations on their graphing calculator.  Students find the axis of symmetry of a parabola. ...
Lesson Plan
Curated OER

Composition Compositions

For Teachers 8th - 10th
Students explore composition and symmetry to create their own digital media piece. In this design composition lesson, students visit the online websites and examples of asymmetrical compositions and symmetry. Students sketch a...
Lesson Plan
Curated OER

Graphs of Quadratic Equations

For Teachers 6th - 10th
In this math worksheet, students solve the problems that ask for the graph of the parabola. They interpret the quadratic equation for its solutions.
Lesson Plan
Curated OER

Geoboard Ideas

For Teachers 3rd - 4th
Learners build polygons on their geoboards. In this geometry lesson plan, students build and then draw it on paper and label it. Learners then switch with a partner to try an make a symmetrical shape.
Assessment
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Curated OER

Congruent Segments

For Students 7th - 9th Standards
The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another. 
Activity
Illustrative Mathematics

Reflections and Isosceles Triangles

For Teachers 9th - 11th Standards
Geometers explore symmetries of isosceles triangles by using rigid transformations of the plane. They complete four tasks, including congruence proofs, which illustrate the relationship between congruence and rigid transformations. The...
Lesson Plan
Curated OER

Invertebrate Phyla

For Teachers 4th - 12th
Students explore the invertebrate phyla. They discuss the characteristics of the invertebrate Phyla in the Kingdom Animal. Students classify organisms into Phyla based on their characteristics. They distinguish radial symmetry, bilateral...
Lesson Plan
Curated OER

Graphs and Transformations of Functions

For Teachers 8th - 10th
Is it possible to solve quadratic equations by factoring? It is, and your class will graph quadratic equation and functions too. They perform transformation on their graphs showing increasing and decreasing intervals, domain, and range....
Lesson Plan
Curated OER

Why Do People Fall in Love?

For Teachers 8th - 12th
Learners discuss human behavior, sexual selection and the underlying genetic and evolutionary reasons for mate selection. The, in groups, they rate the attractiveness of certain individuals and measure facial features for symmetry.