Unknown Type
Khan Academy

Khan Academy: Determine Reflections (Advanced)

For Students 9th - 10th
Given two figures on the coordinate plane, draw the line of reflection that takes one figure to another.
Activity
Texas Instruments

Texas Instruments: Handy Reflections

For Teachers 9th - 10th
The purpose of this investigation is to: Revise plotting points on the Cartesian plane; Use and understand aspect ratios; Improve estimation skills; Use a spreadsheet or a graphing calculator to draw a graph; Learn how to reflect lines...
Unknown Type
Khan Academy

Khan Academy: Advanced Reflections

For Students 9th - 10th Standards
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes. Students receive immediate feedback and have the opportunity to try...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: g.co Reflections and Equilateral Triangles Ii

For Teachers 9th - 10th
This task examines some of the properties of reflections of the plane which preserve an equilateral triangle. The task gives students a chance to see the impact of these reflections on an explicit object and to see that the reflections...
Lesson Plan
Thinkport Education

Math by Design: Transformations/reflections [Pdf]

For Teachers 9th - 10th Standards
On a coordinate plane learners will identify, describe, and plot the results of transformations with guidance provided by this lesson plan.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Reflections and Equilateral Triangles

For Teachers 9th - 10th
Given an equilateral triangle, students are asked to explore its symmetries using rigid transformations of the plane. Aligns with G-CO.B.
Study Guide
Oswego City School District

Regents Exam Prep Center: Intuitive Notion of Line Symmetry and Plane Symmetry

For Students 9th - 10th
Definitions are provided line of symmetry, line symmetry, and plane symmetry, and several nice examples are provided that illustrate these definitions.
Activity
Texas Instruments

Texas Instruments: Reflections on the Coordinate Plane

For Teachers 6th - 8th
Use the activity center in TI-Navigator to discover a generalization for reflecting ordered pairs over the x- or y-axis.
Unit Plan
Clark University

Clark University: Dave's Short Trig Course: Transformations of the Plane

For Students 9th - 10th Standards
Site that focuses on planar pattern and transformations within geometry. It also identifies different kinds of symmetry.
Unknown Type
Common Core Sheets

Common Core Sheets: Geometry 8.g.3 Worksheets: Coordinate Plane

For Teachers 8th
Worksheets provide practice with finding the area or circumference of a circle and answer keys are provided. You can even create your own worksheet or flashcards.
Activity
Texas Instruments

Texas Instruments: Reflecting a Triangle in the Coordinate Plane

For Teachers 9th - 10th Standards
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.
Unknown Type
Khan Academy

Khan Academy: Practice: Reflect Points

For Students 7th - 8th Standards
In this set of questions, students practice using an interactive tool to reflect images on a Cartesian grid. Includes hints.
Lesson Plan
Alabama Learning Exchange

Alex: Creating a Reflection

For Teachers 5th - 8th
In this activity, the learners will create geometric reflections. This is a hands on activity where the student will be able to conceptualize how geometric shapes are reflected across the x and y axis of a coordinate graph. This lesson...
Interactive
Shodor Education Foundation

Shodor Interactivate: Transmographer 2

For Students 9th - 10th Standards
Build your own polygon and transform it in the Cartesian coordinate system. Experiment with reflections across any line, rotations about any point, and translations in any direction.
Interactive
CK-12 Foundation

Ck 12 Exploration Series: Simulations: Physics: Prom Night

For Students 9th - 10th
[Free Registration/Login Required] Understand the Law of Reflection by plane mirrors and the formation of virtual images. Use the simulation to play with variables for a variety of reflections. Further examples explaining how mirrors...
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.
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.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Fixed Points of Rigid Motions

For Teachers 9th - 10th Standards
A rigid motion of the plane is a map of the plane to itself which preserves distances between points. The purpose of this task is to use fixed points as a tool for studying and classifying rigid motions of the plane, i.e., translations,...
Lesson Plan
University of South Florida

Fcat: Reflection: Teacher Notes

For Teachers 9th - 10th Standards
Students use the coordinate plane to investigate how reflections affect geometric shapes. Can be used by the student, but is also a great lesson plan idea for teachers.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Tf, G Co, Trigonometric Identities and Rigid Motions

For Teachers 9th - 10th Standards
The purpose of this task is to apply translations and reflections to the graphs of the functions f(x)=cos x and g(x)=sin x in order to derive some trigonometric identities. There are also rotations 180 degrees about points on the x-axis...
Activity
Texas Instruments

Texas Instruments: Transformations in Geometry

For Teachers 9th - 10th Standards
In this activity the teacher will send two lists, a window range, and an educational document via the TI-Navigator. Students will explore the reflections and rotations of a shape in the rectangular coordinate system.
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...
Handout
CK-12 Foundation

Ck 12: Geometry: Types of Transformations Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Transformations move and modify geometric shapes. There are several types of transformations that all transform figures in different ways. These transformations can...
Activity
Texas Instruments

Texas Instruments: Mapping a Leaf

For Teachers 6th - 8th Standards
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...

Other popular searches