Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Symmetry
Get independent practice working with scientific and standard notation. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Science U
Science U: Welcome to the Geometry Center!
Site provides information and activities on various aspects of geometry, from shapes to patters and symmetry. Make your own tetra puzzle or build an icosahedron in the classroom. Interactive and fun.
University of Georgia
University of Georgia: Transformations: Revisiting Congruence
This site presents information on the three basic transformations of figures in a plane: Reflections, Rotations, and Translations.
University of Illinois
University of Illinois Urbana Champaign: Egg Math Axis of Symmetry
Uses an egg to demonstrate the concept of axis of symmetry. Put your cursor over the picture to "move" around the egg. Offers links to related concepts, including Cartesian Ovals and Ovals of Cassini.
Windstream
Ojk's Precalculus Study Page: Reflections and Symmetry
An introduction to the various types of symmetries that can occur in the graphs of functions. Uses vertical, horizontal, and oblique reflections as a means of recognizing symmetries.
National Council of Teachers of Mathematics
The Math Forum: The Four Types of Symmetry in the Plane
This Math Forum site gives visual examples of rotation, translation, reflection, and glide reflection with background information about each. Also gives problems to work on concerning symmetry.
Shodor Education Foundation
Shodor Interactivate: Lesson: Tessellations Geometry and Symmetry
This lesson plan deals with tessellations and their geometric concepts. Upper elementary and middle school students will also explore polygons, symmetry, analyze patterns and explore the role of mathematics in nature and culture.
Shodor Education Foundation
Shodor Interactivate: Lesson: Visual Patterns in Tessellations
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...
Rice University
Rice University: Cynthia Lanius: Polyominoes Fun With Dominoes
For students who have ever played dominoes and Tetris, polyominoes will strike them as a great deal of fun. Teachers will see the educational benefits of working with similar and congruent shapes and rotating them in a plane. Exploration...
Texas Instruments
Texas Instruments: Numb3 Rs: A Group of Symmetries
Based off of the hit television show NUMB3RS, this lesson has students examine a set of transformations to determine if certain properties (such as associativity and closure) exist for equilateral triangles. Students create tables of...
Texas Instruments
Texas Instruments: Double Your Design
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.
Texas Instruments
Texas Instruments: Symmetry With Pattern Blocks
Students learn to use pattern blocks to build a design that has a line of symmetry. They use the calculator to determine the value of half the design. They predict and then find the value of the entire design.
Texas Instruments
Texas Instruments: Mapping a Leaf
In this activity, students will identify and record ordered pairs from a coordinate plane. They will examine symmetry about the axes, reflections, and symmetry in nature. They understand geometric concepts like area and perimeter, and...
Texas Instruments
Texas Instruments: Reflecting a Triangle in the Coordinate Plane
In this activity, students use the drawing and measurement tools of Cabri Jr. to blend coordinate geometry with drawing tools. They visualize symmetry and reflect a point across the y-axis.
Science Education Resource Center at Carleton College
Serc: Merlot Mathematics Portal: Symmetry and Tilings: An Exploration
A geometry lesson where young scholars read about tilings and tessellations, answer some questions, then explore them using an online interactive. Afterwards, they share and apply their learning in discussion and by examining other tilings.
Primary Resources
Primary Resources: Patterns and Symmetry
Teachers, here's a great resource for worksheets and presentations about symmetry. Includes PowerPoint and smartboard presentations.
Math Is Fun
Math Is Fun: Symmetry Jigsaws
Assemble jigsaw puzzles of items in nature, engineering, math, and art that display symmetry. You can customize a puzzle's rows, columns, and piece shape to make the jigsaw challenging or simple.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Simetria De Las Funciones Polinomicas
In this activity you can learn the geometric and algebraic meaning of the symmetry about any point and any vertical axis.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Procedimiento Para Analizar Una Funcion
Use this unit to learn and practice the general procedure for representing curves in the form y=f(x). It provides a more advanced look at polynomial and rational functions with interactive graphs.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Movimientos en El Plano
In Spanish. This is an approach to the concept of free vector and its coordinates, calculating translation and symmetries of simple figures.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Traslaciones, Simetrias Y Giros
In Spanish. In this unit you can learn about movements in the plane: translations, symmetry and rotation.
Minneapolis Institute of Arts
Arts Connect Ed Artist's Toolkit Encyclopedia: Balance
An interactive site that explores the elements and principles of visual art through the artist's toolkit. This is the encyclopedia entry for balance which covers symmetry and asymmetry, balance with color, and other types of balance.
TED Talks
Ted: Ted Ed: Group Theory 101: How to Play a Rubik's Cube Like a Piano
Mathematics explains the workings of the universe, from particle physics to engineering and economics. Math is even closely related to music, and their common ground has something to do with a Rubik's Cube puzzle. Michael Staff explains...
Johns Hopkins University
Jhu: The Study of Human Brain Symmetry
This is a site describing how symmetry is used to describe the brain. Check it out.