# 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).

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.

What's the best payment? part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

After predicting which of two earnings streams has the highest currrent value, students use a discounted values table to compare the two earnings streams, discovering that earlier earnings has higher value and that ...

Understanding money: Where is most of my money? part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

This activity uses an Interactive Lecture Demonstration to help students understand the definition of money in a modern economy. Starting with the common misconception that money is coins and currency, the ...

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.

The US economy during your lifetime part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Students predict the best graphical representation of US real GDP/capita during the last twenty years, choosing from graphs showing: cyclical decline, cyclical change with no net change, cyclical increase, or erratic wide fluctuations. Using actual US data, students graph real GDP/capita to find out the actual pattern: a rising series with periodic dips, not a flat series, a falling series, or a highly erratic series as students often predict. Students then reflect on why this pattern is often misunderstood and why it may not fully describe the well-being of the US population.

Buoyancy and Archimedes Principle part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Summary Buoyancy is based on Archimedes' Principle which states that the buoyant force acting upward on an object completely or partially immersed in a fluid equals the weight of the fluid displaced by the ...

Image Maps part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Thermal Conductivity Demonstrations part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Summary Here are three ideas for demonstrating thermal conductivity to your students. I. Heat flow down a metal rod (or rods) is timed by seeing wax melt at different locations along the rod. II. A rod made of ...

Convection Demonstration part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples

Summary This demonstration uses ** How to set up the demonstration How to do the demonstration Ideas for discussing the convection demonstration in class References and resources