This website from the Exploratorium provides a demonstration of total internal reflection. The activity uses a fish aquarium to illustrate how a transparent material like water can act as a reflector. The site...
In this activity, by the Concord Consortium's Molecular Literacy project, students explore the "many biological systems that can be thought of as tiny (but very accurate) molecular machines that use chemical energy to...
Presented by HippoCampus, a project of the Monterey Institute for Technology and Education, this free online course follows up on a previous course, Algebra 1A, which "develops algebraic fluency by providing students...
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