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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

The nature of volcanism as controlled by viscosity part of Cutting Edge:Courses:Petrology:Teaching Examples
This activity is fun to include in a classroom. This activity has the students design demonstrations using ketchup and peanut butter to document how viscosity differences between rhyolite and basalt control various ...

Subject: Geoscience:Geology:Igneous and Metamorphic Petrology:Igneous Processes, Volcanology

Seasons part of Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend the Earth's position in space, the Earth's rotation axis and seasons.

Subject: Geoscience:Lunar and Planetary Science, Physics:Astronomy:Solar System

Tree Ring Model part of Examples
While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend the natural variations of tree-ring width and their uses for determining past climatic ...

Subject: Biology:Ecology

Obesity Epidemic part of 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

Membranes and Cell Structure part of Examples
A one page assignment that uses online tutorials to give students a first exposure to the components of a cell and membrane.

Subject: Biology

Why is Chlorophyll Green? part of 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

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

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

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