eBook
Mathigon

Mathigon: Geometry: Symmetry Groups

For Students 9th - 10th
This lesson focuses on symmetry groups; some shapes have more than one symmetry. You can add two symmetries to form a new one. It provides examples and practice exercises including a "symmetry calculator."
eBook
Mathigon

Mathigon: Geometry: Symmetry in Physics

For Students 9th - 10th
This lesson focuses on symmetry in physics. The laws of nature are the name given collectively to the physical rules (usually expressed as mathematical equations) that try to explain everything we observe in the universe.
eBook
Mathigon

Mathigon: Geometry: Symmetry

For Students 9th - 10th
This lesson focuses on symmetry including reflectional symmetry, rotational symmetry, and palindromes. It defines each, gives examples, and practice activities.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Dilation in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to draw dilated figures in the coordinate plane and use dilated figures in the coordinate plane to find scale factors. Students...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Dilation in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students dilate figures in the coordinate plane. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Activity
CK-12 Foundation

Ck 12: One Step Equations Transformed by Multiplication/division

For Students 5th - 7th
[Free Registration/Login Required] Students will explore solving for variables with multiplication and division. Click challenge me to answer a practice question and click learn more to watch a video.
Lesson Plan
PBS

Pbs Mathline Lesson Plan: Sidewalk Capers [Pdf]

For Teachers 3rd - 5th
The objective of this lesson is for students to, "explore spatial relationships by determining the area of various shapes and creating tessellation patterns." Using a variety of hands-on activities, students apply concepts of geometry,...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Tessellations Grade 8

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Identifying tessellations and figures that will tessellate.
Whiteboard
ClassFlow

Class Flow: Transformations in Geometry

For Teachers 3rd - 5th
[Free Registration/Login Required] This flipchart was designed to introduce fourth grade students to transformations in geometry. It includes translations, reflections, and rotations.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Reflection Symmetry

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Find a figure's lines of symmetry.
Study Guide
Oswego City School District

Regents Exam Prep Center: Reflection in a Line

For Students 9th - 10th Standards
This site gives some examples of line reflection transformations. Includes coordinate graphs to show reflections of lines and shapes.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Math Challenges for Families

For Students 2nd - 8th
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Unknown Type
Khan Academy

Khan Academy: Perform Translations

For Students 7th - 8th
Use the interactive transformation tool to perform translations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
Government of Alberta

Learn Alberta: Math Interactives: Exploring Dilations

For Students 9th - 10th
Investigate dilations using this interactive resource. Students are given an opportunity to explore how scale factors can be used to enlarge or reduce the size of a given figure. Be sure to follow the link to the printable activities,...
Study Guide
Oswego City School District

Regents Exam Prep Center: Working With Line Reflections

For Students 9th - 10th Standards
This Regents Prep site contains numerous problems concerning line reflections. Each multiple choice problem contains a short explanation.
Unknown Type
Khan Academy

Khan Academy: Practice: Translate Points

For Students 6th - 8th Standards
In this exercise, students practice performing translations on a coordinate plane. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
Unknown Type
Khan Academy

Khan Academy: Practice: Rotate Points

For Students 6th - 8th Standards
In this exercise, students practice performing rotations on a coodinate plane. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
Unknown Type
Khan Academy

Khan Academy: Reflect Points

For Students 6th - 8th Standards
In this exercise, students practice performing reflections on a coordinate plane. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
Handout
Oswego City School District

Regents Exam Prep Center: An Intuitive Notion of Dilation

For Students 9th - 10th Standards
This site offers a very basic discussion of dilations. It explains what a scaling factor is and provides illustrations.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Translations

For Students 9th - 10th Standards
Explains, with examples, what a translation is. Includes tutorials and practice activities.
Unknown Type
Khan Academy

Khan Academy: Dilations: Scale Factor

For Students 9th - 10th Standards
Find both the center and the scale factor of a dilation that maps a given figure to another one. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Dilate Triangles

For Students 9th - 10th Standards
Given a figure and a definition of a dilation, draw the image. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Practice: Rotate Points

For Students 7th - 8th Standards
In this set of questions, students use an interactive tool to rotate objects on a Cartesian grid. Help is available through hints and videos.
Unknown Type
Khan Academy

Khan Academy: Determine Translations

For Students 9th - 10th Standards
Given two figures on the coordinate plane, find the formal definition of the translation that takes one figure to another. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...