Shodor Education Foundation
Shodor Interactivate: Lesson: Translations, Reflections, and Rotations
Learners are introduced to translations, reflections, and rotations and how to explore them in real-world scenarios.
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.
Rice University
Rice University: Cynthia Lanius: Dueling Pinwheels (Geometer's Sketchpad)
An introductory look at the interactive Geometer's Sketchpad in terms of using it to explore rotations, translations, and reflections. Only a beginner's amount of skill with the program is needed. Exploration questions are given for the...
Texas Instruments
Texas Instruments: Exploring Transformations
The students will explore reflections of an object over the x-axis, y-axis, and origin.
Texas Instruments
Texas Instruments: Flipping Over the Coordinate Plane
In this activity, students review basic geometry vocabulary while investigating reflections on a coordinate grid.
Texas Instruments
Texas Instruments: Reflections on the Coordinate Plane
Use the activity center in TI-Navigator to discover a generalization for reflecting ordered pairs over the x- or y-axis.
Texas Instruments
Texas Instruments: Reflections in the Plane
Students will learn how to perform a reflection using the Cabri Jr. application, and will explore the properties of reflections. This activity will extend the concepts of reflection to the coordinate plane.
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: 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: Changing Functions
Students can use as an assessment-discovery lesson after talking about reflections and transformations of functions
Texas Instruments
Texas Instruments: Transformations, Reflections and Translations
Students will discover how to move a function up, down, to the right or left or reflect it.
Texas Instruments
Texas Instruments: Finding the Shortest Path
Students discover the shortest distance light travels from an object to the human eye, as the light from the object reflects off a single mirror. In the process they learn about reflection in a line, congruent angles, angle bisectors,...
Texas Instruments
Texas Instruments: The Closer I Get to You Ti 83
Here's a group activity your students can do to learn about rational functions. Students will use properties of reflections together with measuring tapes, mirrors, and masking tape to find a function that relates height of a reflection...
Texas Instruments
Texas Instruments: Reflections
This activity will let students understand the concept of reflection.
Texas Instruments
Texas Instruments: Transforming "F" on the Coordinate Plane
Students move their cursor in this activity center to occupy a unique point on a background letter "F" in quadrant 1. Students then together follow a rule for going to a different point (such as "use the opposite of the original x...
Texas Instruments
Texas Instruments: Transformational Puppet
This activity is designed to reinforce the concepts of reflections and translations by having the students create a virtual puppet using Cabri Jr. As they construct their puppets, students will reinforce their understanding of...
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.
Texas Instruments
Texas Instruments: Reflections Over the Axes
It is important for students to know what happens to the coordinates of points when they are reflected over the x-axis or the y-axis. This activity enables students to use Cabri Jr. to develop this understanding.
Open Curriculum
Open Curriculum: The Ray Model of Light
Students will understand the concept of the ray model of light and how light interacts with matter and reflections.
Other
University of California: Acoustics for Music
A discussion of the acoustical features of a room and their effects upon the perception of sound. Topics such as absorption, reflection, and reverberation are clearly discussed and cleverly illustrated.
Other
P.u.e.m.a.c.: Galeria De Transformaciones
Enjoy constructions created by rotations, reflections and translations. [Requires Java.]
Clark University
Clark University: Dave's Short Trig Course: Transformations of the Plane
Site that focuses on planar pattern and transformations within geometry. It also identifies different kinds of symmetry.
ReadWriteThink
Read Write Think: Improving Student Writing Through Critical Thinking
Contains plans for a instructional activity about writing draft letters, or reflective letters about pieces of writing that young scholars are submitting to an instructor. In addition to objectives and standards, this instructional plan...
Texas Instruments
Texas Instruments: Reflecting Objects
In this activity, students use the Geoboard App to draw and make a reflection of a scalene triangle. [Requires Adobe Reader.]