TeachEngineering
Teach Engineering: When Silicon Talks
In this activity, students tackle this aspect of engineering as they solve problems for precise angles and speeds, and predict data output when samples are altered.
Optical Society
Optical Society of America: Optics for Kids: Mirrors and Images
An experiment to investigate how many images appear as the angle between two hinged mirrors is increased. Accompanied by an explanation of what is happening, questions for students to consider, and a link to an article about reflection.
Florida State University
Florida State University: Molecular Expressions Microscopy Primer: Light and Color Refraction of Light
Comprehensive and sophisticated overview of light refraction includes an historical overview of the subject and explanations of the mathematics that underpin refractive indexes, the relative index of refraction, Snell's law, and light...
Optical Society
Optical Society of America: Exploring the Science of Light: Easy Activities
A collection of simple experiments for exploring the basic properties of light and color.
National Council of Teachers of Mathematics
The Math Forum: Putt Putt Golf in the Math Classroom
Putt-Putt golf can be a great tool in helping students understand angles and their reflections. Here a teacher demonstrates the "Course," set up in his classroom to assist in explaining to students how to use geometry and angles in...
Teachers TryScience
Teachers Try Science: Where There's Light, There's Hot Food!!!
This unit helps students learn to apply the concept of solar energy conservation. They are introduced to angles and their effect on the amount of light reflected, and they will also design, construct, manipulate, critique, evaluate and...
Illustrative Mathematics
Illustrative Mathematics: G Co Origami Equilateral Triangle
The purpose of this task is to explore reflections in the context of paper folding. Each fold is associated with a line of reflection and understanding each step in the construction requires careful analysis of angles and of the...
University of Minnesota
University of Minnesota: Refraction of Light
This page is a continuation of a tutorial about light reflection and refraction. It contains a diagram and suggestions on how to derive Snell's Law, which governs the refraction of light in a medium. For background to this derivation,...
Exploratorium
Exploratorium: Bubbularium
What colors do you see in a bubble? Why do you see colors in a bubble? Use this site to find out the answer to these questions with this easy experiment.
Exploratorium
Exploratorium: Up Periscope!
Children can look around corners with this homemade periscope. Great instructions at this Exploratorium site on how to build a periscope.
OER Commons
Oer Commons: Review Quiz
Students reflect on their work and apply what they've learned about the characteristics of geometric figures. Includes a learning game to be played with a partner.
OER Commons
Oer Commons: Shape Characteristics
In this instructional activity, students discuss what they know about shapes and their characteristics through a paper-folding activity that results in a parallelogram. Included are examples, discussion questions, and a reflection...
Math Slice
Math Slice: Geometry Slice Special Test
A succinct test for assessing geometry concepts. Assessment is scored online giving immediate feedback. An excellent assessment tool.
Utah Education Network
Uen: Discovering Ourselves in Literature and Life
This lesson plan, provided by the International Society for Technology in Education (ISTE), encourages pupils to evaluate literature in a variety of multimedia formats and answer the question, "Who Am I?," Students are then asked to...
TeachEngineering
Teach Engineering: Photovoltaic Efficiency
Through a series of four lessons, students are introduced to many factors that affect the power output of photovoltaic (PV) solar panels. Factors such as the angle of the sun, temperature of the panels, specific circuit characteristics,...
Georgia State University
Georgia State University: Hyper Physics: Crossed Polarizers
At this univeristy physics department site, the polarization of light is explained and illustrated. Methods for analyzing light to determine the degree of polarization are stated and explained with equations.
Georgia State University
Georgia State University: Hyper Physics: Polarization by Absorption
The operation of Polaroid filters on a pair of sunglasses is shown.
Other
Platonic Realms: Conics
This resource provides in depth information on the conic sections. Click on the underlined words for definitions and diagrams.
Illustrative Mathematics
Illustrative Mathematics: G Co Why Does Asa Work?
In triangles ABC and ABD, we are given that angle BAC is congruent to angle BAD and angle ABC is congruent to angle ABD. Show that the reflection of the plane about line AB maps triangle ABD to triangle ABC. Aligns with G-CO.B.8.
Illustrative Mathematics
Illustrative Mathematics: Reflections, Rotations, and Translations
This task uses GeoGebra software, which can be freely downloaded, to explore what happens to the line segments and angles of a triangle when it is reflected, rotated, and translated. Includes printable task sheet for students and a...
Physics Classroom
The Physics Classroom: Image Formation for Plane Mirrors
Scroll down to Lesson 2 for a tutorial on image formation in plane mirrors. The tutorial from Glenbrook South High School provides lessons on why and how an image is formed, image characteristics for plane mirrors, ray diagrams, plus more.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Geometry
Practice using your graphing calculator for Geometry problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
BBC
Bbc: Gcse Bitesize: Why Do Scientists Think That Light and Sound Are Waves?
Light travels as transverse waves and can travel through a vacuum. Sound travels as longitudinal waves and needs to travel through a solid, liquid or gas. Read about the properties of light and of sound, and learn the differences between...
McREL International
Mc Rel: Glue Polymer (Whelmer #15 Learning Activity)
An easy to do activity that investigates the basic principles behind chemical bonding. The activity is written in lesson plan format that meets NSES standards.