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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).

Subject: Geoscience:Geology:Historical Geology

Law of Diminishing Marginal Returns part of Examples
An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

Shape of the demand curve part of Examples
A classroom auction reveals reservation prices and a demand curve for an introductory economics course.

Subject: Economics:Markets

The unemployment rate for the class part of Examples
After predicting what the unemployment rate will be for students in the class, a confidential survey modeled on the Current Population Survey questions is used to gather data about each student's employment. Students use this data to measure the class unemployment rate and then assess its accuracy.

Subject: Economics:Macro

Total Revenue and Price Elasticity of Demand: ILD part of Examples
This ILD helps students to understand the relationship between total revenue and price elasticity of demand.

Subject: Economics

Monopoly gas station part of Examples
Students predict then calculate and graph profit-maximizing the price for an isolated, desert monopoly gas station.

Subject: Economics:Markets

Price elasticity of demand survey part of Examples
Students survey class members to estimate the price elasticity of demand for a number of goods and services.

Subject: Economics:Micro

Law of Diminishing Marginal Returns part of Examples
An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

Subject: Economics

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.

Subject: Physics, Geoscience:Hydrology

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).

Subject: Physics:Classical Mechanics