Georgia State University
Georgia State University: Hyper Physics: Reverberation
A tutorial from a hypertext physics course book that discusses reverberation. Illustrated.
Cosmo Learning
Cosmo Learning: Applied Science and Technology 210: Electrical Engineering
A collection of video lectures from a course that explores the application of electrical engineering topics. Webpage includes twenty-eight lectures from a professor at the University of California, Berkeley. Lectures vary in length and...
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.
National Council of Teachers of Mathematics
The Math Forum: The Four Types of Symmetry in the Plane
This Math Forum site gives visual examples of rotation, translation, reflection, and glide reflection with background information about each. Also gives problems to work on concerning symmetry.
University of South Florida
Fcat: Reflection: Teacher Notes
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.
University of Illinois
University of Illinois Urbana Champaign: Light and Optics
Rainbows and sunsets are called "atmospheric optics". They can be caused by light being absorbed, reflected, scattered, refracted, or diffracted by particles in the atmosphere. Learn all about different atmospheric optics along with...
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: Numb3 Rs: A Group of Symmetries
Based off of the hit television show NUMB3RS, this lesson has students examine a set of transformations to determine if certain properties (such as associativity and closure) exist for equilateral triangles. Students create tables of...
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: Holt Physics: Brightness of Light
This probeware version of the Skills Practice Lab Brightness of Light from the chapter Light and Reflection uses a light probe to measure the intensity of light at different distances from a light source.
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: 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: Geoboard App
Students use the Geoboard App to measure arcs, line segments, area, and perimeter, as well as rotate, reflect, and translate objects.
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: Geometry: Translations and Reflections
Students will be in groups and plot given points. From the given points the students will plot the appropriate reflection or translation.
Texas Instruments
Texas Instruments: Collecting Solar Rays
In this activity, students' will use three Temperature Sensors to collect data from three solar collectors and determine which one absorbs the most heat. They will develop an understanding of the difference between absorption and...
Texas Instruments
Texas Instruments: Traveling Shapes Motion Geometry
In this activity, students describe how to move a shape from one place to another in a plane. They learn about translations, rotations, and line reflections. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Reflections
This activity will let students understand the concept of reflection.
Texas Instruments
Texas Instruments: Shortest Distance Problem
This is a great follow-up to the Introduction to Properties in Reflections. Students may have trouble producing a scaled drawing. Using a scale of 1 to 5 works well.
Texas Instruments
Texas Instruments: Match the Graph
Students use the Cabri Geometry II Plus software to reflect points from a graph across the axes.