Curated OER
Building a Telescope
High schoolers construct a simple refracting telescope. They calculate the magnification.
Curated OER
Microscopes and Telescopes
Young scholars analyze a microscope and study what they do. In this investigative lesson students study how microscopes were first invented, and how ray diagrams are used in conjunction.
Curated OER
Pinhole Viewer
Pupils make a pinhole viewer to demonstrate how it inverts light passing through it which produces inverted images.