Alabama Learning Exchange
Mirror, Mirror on the Wall: Reflections of Light
Why can we see our reflection in a window but not a brick wall? Young physicists learn the Law of Reflection and various light properties that help them answer this and other questions about reflection. Use the PowerPoint to introduce...
Curated OER
Transformations - Rotations in the Coordinate Plane
In this geometry lesson, math scholars brainstorm examples of rotations. Using the SMARTboard, students observe a rotation. They create their own rotation using graph paper. Finally, pupils complete a worksheet and graph rotations.
Virginia Department of Education
Dilation
Open up your pupils' eyes and minds on dilations. Scholars perform dilations on a trapezoid on the coordinate plane. They compare the image to the preimage and develop generalizations about dilations.
Curated OER
Six Exercise Sets on Transformations
Middle and high schoolers solve fifteen problems from six exercise sets covering transformations, reflections, rotations, and enlargements. The solutions are provided.
Curated OER
A Geometry Worksheet - Similar Triangles
In this similar triangles worksheet, students find the scale factor of 6 sets of similar triangles. Students find the scale factor of two similar triangles given a sketch with measurements. Students use proportions to find a missing side...
University of Regina (Canada)
University of Regina: Math Central: Tantalizing Tessellations!
For this unit, students will be taught several techniques for creating tessellations and will respond to their learning in their Math journals.
Math Open Reference
Math Open Reference: Plane Geometry: Transformations
Explore transformations of a polygon that include: 1) translation 2) rotation 3) reflection and 4) dilation.
Government of Alberta
Learn Alberta: Exploring Similarity and Congruence
Begin by watching this captivating video showing how the concepts of similarity and congruence are found in road signs. Following the video [1:27], an interactive applet allows students to resize, flip, move and rotate triangles to...
Texas Education Agency
Texas Gateway: Comparing and Explaining Transformations
Given rotations, reflections, translations, and dilations, students will be able to develop algebraic representations for rotations and generalize and then compare and contrast the properties of congruence transformations and...
Texas Education Agency
Texas Gateway: Comparing and Explaining Transformations
Given rotations, reflections, translations, and dilations, students will be able to develop algebraic representations for rotations, and generalize and then compare and contrast the properties of congruence transformations and...
![University of Waterloo: Cemc: Geometry and Spatial Sense: Transformations [Pdf] Unknown Type](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "University of Waterloo: Cemc: Geometry and Spatial Sense: Transformations [Pdf] Unknown Type")
University of Waterloo (Canada)
University of Waterloo: Cemc: Geometry and Spatial Sense: Transformations [Pdf]
Accompanied by links to online activities and demonstrations, students learn about the different types of transformations on a coordinate grid through this lesson plan. The lesson is designed to match the Grade 7 Ontario curriculum, with...
Alabama Learning Exchange
Alex: Geometry City
This lesson plan reviews transformations in the coordinate plane while mimicking real-world planning skills. It gives an assessment and ideas for remediation, extention as well as ways to manage behavior problems and reluctant learners.
Cuemath
Cuemath: What Is Similarity?
This mini-lesson introduces the properties of similarity and its role in geometry.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Transformations
Get independent practice working with transformations. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Math.com
Math.com: Similar Figures
This example provides a clear explanation of how to compare figures to see if they are similar and the formula to determine if the ratios are equal. Interactive practice activities are provided.
University of Regina (Canada)
University of Regina: Math Central: Constructing a Polyhedron
Students are given instructions on how to construct a paper, uniform polyhedron in the shape of a star ball. Animation is used to show the steps to make the star ball. There are also additional modules for other shapes and discussion...
University of Regina (Canada)
University of Regina: Math Central: Constructing a Polyhedron
Students are given instructions on how to construct a paper, uniform polyhedron in the shape of a star ball. Animation is used to show the steps to make the star ball. There are also additional modules for other shapes and discussion...
Shodor Education Foundation
Shodor Interactivate: Lesson: Translations, Reflections, and Rotations
This upper elementary and middle school lesson plan introduces a variety of motion geometry concepts such as translations, reflections, and rotations. Lots of interactive support for students.
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 Regina (Canada)
University of Regina: Math Central: Shape Preserving Transformations
This is a site that discusses transformations and the processes.
Shodor Education Foundation
Shodor Interactivate: Lesson: Geometry in Tessellations
This upper elementary and middle school lesson plan explores tessellations and their geometric properties. Plenty of interactive support is available for students. Lots of resources for teachers to use.
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. Young scholars will also explore polygons, symmetry, analyze patterns and explore the role of mathematics in nature...
Texas Instruments
Texas Instruments: Drawing on Your Knowledge
In this activity, students will understand the basic geometric concepts of parallelism and perpendicularity, and will also able to use rectangular coordinates to make congruent objects. They will display understanding of parts of...