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Geologic Puzzles: Morrison Formation part of Interactive Lectures:Examples

Images of faulted strata, tilted turbidites, and beach rocks bring the field into the classroom, giving students practice in doing what geoscientists do. These images are examples of geologic puzzles.

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How Fast Do Materials Weather? part of Interactive Lectures:Examples

A think-pair-share activity in which students calculate weathering rates from tombstone weathering data.

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Carbon Dioxide Exercise part of Interactive Lectures:Examples

Students work in groups, plotting carbon dioxide concentrations over time on overheads and estimating the rate of change over five years.

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Rivers: Short In-class Activity part of Interactive Lectures:Examples

Images of the James River in Virginia, including one at flood stage, and of potholes, all of which can be used to have the students make observations, estimates, and interpretations.

Describe and Interpret Images: Folded Strata part of Interactive Lectures:Examples

In class, have students make a simple sketch of an outcrop shown in a slide (or computer projection) then discuss possible interpretations.

Constructing Phylogenetic Trees: The Whippo Story part of Interactive Lectures:Examples

An interactive lecture in which students use data on feeding habits and habitat, skeletons, and DNA sequences to draw phylogenetic trees.

Simple Mendelian Genetics: An interactive lecture using "DNA from the Beginning" part of Interactive Lectures:Examples

An interactive lecture that uses flash animations showing the researcher and their experiments that were used to develop the basic concepts in Mendelian genetics. Includes multiple choice questions students can answer in class.

What Determines Gender in Humans? part of Interactive Lectures:Examples

In this activity students examine karyotypes from five individuals to try to identify which chromosomes determine gender in humans. This activity is also a good illustration of meiotic non-disjunction.

Effect of Proportionality Constant on Exponential Graph (k>0) part of Interactive Lectures:Examples

This classroom activity presents College Algebra students with a ConcepTest and a Question of the Day activity concerning the effect of the proportionality constant, k, on the y-intercept and position of an exponential graph where k>0 and C is an arbitrarily fixed value in f(x)=Ce^(kx).

Effect of Coefficient of x on Parabola Vertex (b>0) part of Interactive Lectures:Examples

This classroom activity presents College Algebra students with a ConcepTest, a Question of the Day, and a Write-pair-share activity concerning the effect of the coefficient of x on the vertex of a parabola where a>0, b>0 and a and c are fixed values in f(x)=ax^2+bx+c.