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Math Graphs

Houghton Mifflin: Math Graphs: Symmetry 6 [Pdf]

For Students 9th - 10th
The practice problem explores x-axis symmetry. The graph is available in PDF format.
Unknown Type
Math Graphs

Houghton Mifflin: Math Graphs: Symmetry 8 [Pdf]

For Students 9th - 10th
The practice exercise examines y-axis symmetry. The graph is available in PDF format.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Mirror Tool

For Students 9th - 10th
This interactive tool helps student visualize symmetry. The exploration provided by the site helps students explore reflective symmetry. [Requires Java.]
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Visual Patterns in Tessellations

For Teachers 3rd - 8th Standards
This upper elementary and middle school lesson plan examines the mathematical nature of art, tilings and tessellations. Students will also explore polygons, symmetry, analyze patterns and explore the role of mathematics in nature and our...
Unit Plan
Oswego City School District

Regents Exam Prep Center: Reflections: Line and Point

For Students 5th - 8th Standards
Lesson and activities focusing on line reflection. Here you will find a detailed explanation of the concept with picture examples, opportunities for interactive practice, and supporting classroom activities in the teacher resource pages.
Interactive
National Council of Teachers of Mathematics

Nctm: Slam Ball

For Students 6th - 8th
[Free Registration/Login Required] Angles and symmetry are reviewed in this learning game. Students try to identify high-scoring paths by slamming the ball off the sides of the game board and send it on a path that collects the most tokens.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Seven Circles Ii

For Teachers 9th - 10th Standards
In this task, seven pennies are placed in a circle so that they are all touching one in the center and their neighbors. Learners are asked to find as many rigid motions of the plane as they can which are symmetries of this configuration...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Reflections

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about reflections and how to find the coordinates of a reflected figure.
Unit Plan
Texas Education Agency

Texas Gateway: Making Conjectures About Congruence Transformations

For Students 9th - 10th Standards
Given geometric figures on the coordinate plane, the student will apply the definition of congruence, in terms of rigid transformations, to identify congruent figures. The student will also identify and distinguish between reflectional...
Lesson Plan
National Council of Teachers of Mathematics

The Math Forum: Multicultural Math Fair: Navajo Burntwater Designs

For Students 3rd - 8th
Simple lesson designed to help young scholars learn the geometric concepts of translation, reflection, and symmetry by creating Navajo weaving patterns. Includes templates and instructions and is available in English and Spanish....
Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Using Symmetry to Create a Community Quilt

For Teachers 9th - 10th
This site provides a hands-on lesson plan to make a quilt using symmetry.
Interactive
Government of Alberta

Learn Alberta: Math Interactives: Exploring Transformations

For Students 6th - 8th
This multimedia Learn Alberta math resource looks at real world examples of transformations found throughout West Edmonton Mall. The accompanying interactive component asks students to predict transformations through looking at...
Graphic
Curated OER

Ic Teachers: Line or Reflective Symmetry

For Students 3rd - 8th
This website will provide you with a quick review of line or reflective symmetry. It also has questions and answers to help you understand line/reflective symmetry.
Graphic
Curated OER

Ic Teachers: Line or Reflective Symmetry

For Students 3rd - 8th
This website will provide you with a quick review of line or reflective symmetry. It also has questions and answers to help you understand line/reflective symmetry.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Rotations

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Recognizing and identifying rotation transformations and rotational symmetry
Activity
Texas Instruments

Texas Instruments: Double Your Design

For Teachers Pre-K - 1st
Students learn to use pattern blocks to investigate symmetry by building a design, making its mirror image, and using the calculator to determine the value of both the design made and its reflection.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Why Does Asa Work?

For Teachers 9th - 10th Standards
In triangles ABC and ABD, we are given that angle BAC is congruent to angle BAD and angle ABC is congruent to angle ABD. Show that the reflection of the plane about line AB maps triangle ABD to triangle ABC. Aligns with G-CO.B.8.
Activity
Other

Earth Measure: Native American Geometry Designs: Mathematical Landscaping

For Teachers 3rd - 8th
If you want to plant a class garden, this is a great resource for combining geometry, Native American studies, and rocks.
Activity
National Council of Teachers of Mathematics

The Math Forum: Putt Putt Golf in the Math Classroom

For Teachers 9th - 10th
Putt-Putt golf can be a great tool in helping students understand angles and their reflections. Here a teacher demonstrates the "Course," set up in his classroom to assist in explaining to students how to use geometry and angles in...
Unit Plan
Cornell University

Cornell University: Isometries and Patterns

For Students 9th - 10th
Shows the different kinds of isometries and patterns, and gives examples of each kind. Includes definitions, terminology, examples, and problems.
Unit Plan
Other

The Disgustoscope

For Students 9th - 10th
This is a resource to teach optics, while building a modified kaleidoscope that will provide 3-dimensional images.
Activity
University of Georgia

University of Georgia: Transformations: Revisiting Congruence

For Students 9th - 10th Standards
This site presents information on the three basic transformations of figures in a plane: Reflections, Rotations, and Translations.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Rigid Transformations

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Identify different types of transformations.
Graphic
University of Cambridge

University of Cambridge: Nrich: Transformation Tease

For Students 3rd - 8th Standards
Follow the directions at this one page website. You will get lots of practice plotting points on the coordinate grid and experience with transformational geometry.

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