PHET
Geometric Optics
What would happen if your entire world was flipped upside down? In addition to changing the distance and size of an object, lenses flip the image upside down. The simulation allows scholars to vary the object, move the object, move the...
University of Minnesota
Beautiful Brain: Do You See What I See?
Can art play tricks on your eyes, and can a still painting really appear to vibrate? The second instructional activity in a four-part series discusses the way our beautiful brains translate visual images. It highlights the style of...
Curated OER
Beads, Balls, and Beakers
Young scholars analyze the amount of space required to pack round objects. In this geometry instructional activity, students practice using space economically by practicing packing spheres into beakers. They then translate this concept...
Curated OER
Spice Up the Basal
Fifth graders study English reading and writing skills as they participate in exciting interdisciplinary hands-on activities using a basal reading series.