Examples of Teaching with Demonstrations
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M&M Model for Radioactive Decay part of Quantitative Skills:Activity Collection
A tasty in-class demonstration of radioactive decay using two colors of M&M's. Illustrates the quantitative concepts of probability and exponential decay. This activity is appropriate for small classes (<40 students).
Resolving Force Vectors: Interactive Demonstration part of Examples
This is an Interactive Lecture Demonstration for resolving force vectors using the suspended block demonstration (1J30.10).
Plate Kinematics part of Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend the dynamics of plate kinematics.
Presenting the Geologic Timescale part of Examples
This project has students model the geologic timescale using distance as a metaphor for time. Students give presentions spaced at distances which represent how far apart in time the events occurred.
Adhesion, Cohesion, and Surface Tension Demonstration part of Examples
This short (<5-10 minutes) pair of demonstrations uses glass slides with a very thin film of water to demonstrate the cohesive and adhesive forces of water molecules, and a needle floating on water to demonstrate surface tension.
Pressure Melting of Ice: While-U-Wait part of Examples
In this demonstration, students get to witness pressure melting and regelation first-hand. A weight is suspended via a thin wire over an ice cube. Over the course of the course of the demonstration, the wire passess through the ice, leaving undamaged ice in its wake.
Crystallization from Melt Demonstration part of Examples
This demonstration uses melted phenyl salicylate to show how crystals nucleate and grow as the temperature of the liquid melt decreases.
Water Contamination Demonstration part of Examples
Summary: Misplaced Matter and Water Pollution The drinking water pollution demonstration provides a very simple but dramatic way to get students to think about water contamination and drinking water standards, ...
Image Maps part of Examples
The Elliptic Orbit part of Examples
Planet motion around a star - introductory activity with interesting animation. The activity allows the student to revile the connection between the kinematics of planet and energy of the planet along the orbit.