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Why is Chlorophyll Green? part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This is an out of class exercise that allows students to explore biological molecules that contain heme like molecules with metals bound in them. The properties of these molecules give them different colors and functions, but all are related evolutionarily.

Subject: Biology

Obesity Epidemic part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
A one page activity that takes students to several websites related to the obesity epidemic. First they can calculate BMI, then learn about national trends in the rate of obesity and finally use a tutorial on insulin and diabetes.

Subject: Health Sciences

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.

Subject: Economics:Macro

Water Contamination Demonstration part of Pedagogy in Action:Library:Interactive Lecture Demonstrations: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, ...

Subject: Geoscience:Hydrology

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

Subject: Education

A simple motor/generator demonstration for use in interactive lecture part of Pedagogy in Action:Library:Interactive Lecture Demonstrations:Examples
This activity describes a simple clear demonstration of electric generators (Faraday's Law) and electric motors (Lorentz Force). This demonstration can be used as an interactive lecture demonstration.

Subject: Physics:Electricity & Magnetism:Magnetic Fields and Forces, Electromagnetic Induction, Physics:Electricity & Magnetism

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

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