This artifact goes through the process of how to describe images. You can edit this to make the instructions in Spanish, to add or change images, or to add or change activities.
Ideas for using OER images to create historical selfies
How does a lens form an image? See how light rays are refracted by a lens. Watch how the image changes when you adjust the focal length of the lens, move the object, move the lens, or move the screen.
Source for open access icons. Can get premium version, with discounts for educators, but free version allows download of icons with attribution text attached.
This resource contains several mini-explorations using a slide projector as a light source to investigate light and the properties of images. These activities can be used as a class demonstration or as learning stations. This guide also includes information about the "anatomy" of slide projectors and how they work. Learners and educators are encouraged to "tinker" with the equipment to find the best conditions and methods. Note: the cost of the projector is not included in the total cost of materials.