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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

Shape of the demand curve part of Pedagogy in Action:Library:Interactive Lecture Demonstrations: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 Pedagogy in Action:Library:Interactive Lecture Demonstrations: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 Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This ILD helps students to understand the relationship between total revenue and price elasticity of demand.

Subject: Economics

Monopoly gas station part of Pedagogy in Action:Library:Interactive Lecture Demonstrations: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 Pedagogy in Action:Library:Interactive Lecture Demonstrations: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 Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

Subject: Economics

Law of Diminishing Marginal Returns part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
An ILD to help demonstrate the Law of Diminishing Marginal Returns using an experiment.

The Elliptic Orbit part of Pedagogy in Action:Library:Interactive Lecture Demonstrations: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.

Electromagnetic Induction Demonstration part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This simple demonstration shows the interaction between electricity and magnetism. Two coils of wire are held close to each other, but not touching. One is attached to a music source, such as a small radio or iPod, and the other is attached to an external speaker. Students can hear the music through the speaker even though there is no direct connection.

Subject: Physics:Electricity & Magnetism:Inductance