Curated OER
Earth is Round
This series of images shows how ancient people figured out that the world was round. Each slide shows a ship moving around the globe and coming closer to the line of the observer's sight. This is a very simple resource that you could use...
Curated OER
How We See Things
In this science instructional activity, students draw arrows, which represent light, on 2 pictures to show how the boy can see the book and the girl can see the picture. They draw arrows showing how light reflects off of mirrors so that...
Physics Classroom
The Physics Classroom: Reflection and the Ray Model of Light
A four-lesson tutorial on the reflection and the ray model of light. These complete tutorials include informational text, interactive activities, animations, and quick, interactive comprehension questions.
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.
Physics Classroom
The Physics Classroom: Reflection and Ray Model of Light: Why an Image Is Formed
This illustrated physics tutorial uses animations to attempt to explain to students why images appear.
Physics Classroom
The Physics Classroom: Reflection and the Ray Model of Light: Ray Diagrams
This illustrated physics tutorial serves as a step-by-step guide to drawing ray diagrams. It includes an opportunity for students to practice and check their answers.
Physics Classroom
The Physics Classroom: Refraction and Ray Model of Light: Refraction and Sight
Through illustrated diagrams and animations, students explore the broken pencil phenomenon and light refraction.
Physics Classroom
The Physics Classroom: Refraction/ray Model of Light: Image Formation Revisited
Students take an in-depth look at the physics behind image formation.