Other
Finite Geometry Notes: Diamond 16 Symmetry Puzzle
At this site see if you can solve the "Diamond 16" puzzle. Change the patterns to create ordinary or color exchange symmetry. This is just one of several challenging puzzles at this site. Links to similar puzzles and games.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Their Graphs
[Free Registration/Login may be required to access all resource tools.] Learn the anatomy of the graph of a quadratic function.
Other
Ic Teachers: Line or Reflective Symmetry
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.
CK-12 Foundation
Ck 12: Elem Math: Determining Image Modifications to Create Symmetry
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to state how many more squares on a grid need to be shaded in order to give a shape line symmetry. Includes video...
CK-12 Foundation
Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] This concept introduces midpoints of line segments.
Oswego City School District
Regents Exam Prep Center: Photo Activity for Symmetry
This activity has instructions for making symmetrical portraits of the human face using a digital photograph. It's an activity students of all ages would enjoy.
CK-12 Foundation
Ck 12: Algebra: Quadratic Functions and Their Graphs
[Free Registration/Login may be required to access all resource tools.] Graph and compare graphs of quadratic functions in the coordinate plane.
National Council of Teachers of Mathematics
Nctm: Figure This: A Shard or Two
Archaeologists have just uncovered an ancient plate. They need your help to determine the original size of the plate. Try this challenge where you use concepts of symmetry and estimation to uncover the solution. An activity from the NCTM...
California State University
Ca State University, San Bernadino: Graphing Techniques
A survey of math graphing techniques includes horizontal and vertical shifts, stretching, lines of symmetry, even and odd functions, and absolute value functions.
Beacon Learning Center
Beacon Learning Center: Ask Hannah
This web lesson teaches students about symmetry in two-dimensional shapes.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Corta en Dos
Try to find the line of symmetry of these 8 figures. If you find it the two figures should coincide.
The Math League
The Math League: Symmetric Figure
This tutorial features several examples of symmetric figures to explain how the line of symmetry works.
CK-12 Foundation
Ck 12: Geometry: Reflections
[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.
Richland Community College
Richland Community College: Graphs of Functions
This site from the Richland Community College provides graphs of Functions offers loose definitions of many terms relative to the graphing of functions.
Other
Georgia Perimeter College: Parabolas
This resource provides an examination of parabolas, both vertical and horizontal, and parabolic functions. It includes six examples and a chart showing how changes in the equation coincide with changes in the graph.
Illustrative Mathematics
Illustrative Mathematics: G Co Why Does Asa Work?
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.
Other
Nearpod: Reflections Using Coordinates
In this lesson on reflections using coordinates, 8th graders explore reflections of line segments using the coordinate plane.
CK-12 Foundation
Ck 12: Geometry: Rigid Transformations
[Free Registration/Login may be required to access all resource tools.] Identify different types of transformations.
University of Texas
Inside Mathematics: Fair Play [Pdf]
This task challenges a student to demonstrate understanding of the concept of measurement.
Wolfram Research
Wolfram Math World: Geometry
This MathWorld tutorial provides detailed overviews of the concepts and theorems associated with geometry. Most of the Math World sites are extensive and some require higher math knowledge to understand, links to terms and topics are...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rotating Parabolas
Dr. Math, in a reply to a student question, shows how to derive the equation of a parabola for situations when the line of symmetry is not || to one of the axes.
Scholastic
Scholastic: Symmetry Surprise
A fun fingerpaint activity that teaches about the concept of symmetry.
University of Georgia
University of Georgia: Inter Math: Line Symmetry
This site gives a description of line symmetry along with a visual representation. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving line symmetry...
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...
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