Illustrative Mathematics
Representing Half of a Circle
Geometric shapes make great visual models for introducing young mathematicians to the concept of fractions. Looking at a series of four circles, students are asked to determine whether or not one half of each circle is shaded. To support...
Exploratorium
Peripheral Vision
Life science learners discover the range of peripheral vision. They compare the angles at which they can detect motion, colors, and detailed shapes.
DiscoverE
Build a Better Boomerang
This isn't the boomerang you're used to. Scholars first see how a commercial boomerang works. They then cut out a four-wing boomerang and test its flight to compare it to that of the commercial boomerang.