Magma Viscosity Demos part of Interactive Lectures:Examples
This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal structures, and igneous rock classification with magma viscosity, and to connect magma viscosity with volcano explosiveness and morphology.

Rutherford's Model of the Atom part of Interactive Lectures:Examples
Students are asked think-pair-share questions to predict the interaction of alpha particles fired toward the nucleus of an atom. An online applet is used to illustrate the interaction and test students' ideas for the causes of the interaction. This activity uses a resource in the comPADRE partner collection.

Externalities in the cashmere market: Colbert Report interview part of Interactive Lectures:Examples
In this interactive lecture, students watch a video clip from The Colbert Report that addresses pollution externalities. Students graph the market and use the write-pair-share technique, then brainstorm ways to move the market to the socially efficient equilibrium.