Geologic Puzzles: Morrison Formation part of 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.

Constructing Phylogenetic Trees: The Whippo Story part of Examples
An interactive lecture in which students use data on feeding habits and habitat, skeletons, and DNA sequences to draw phylogenetic trees.

Magma Viscosity Demos part of Examples
This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal structures, and igneous rock classification with magma viscosity, and to connect magma viscosity with volcano explosiveness and morphology.

How Fast Do Materials Weather? part of Examples
A think-pair-share activity in which students calculate weathering rates from tombstone weathering data.

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

Simple Mendelian Genetics: An interactive lecture using "DNA from the Beginning" part of 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 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.

Describe and Interpret Images: Folded Strata part of Examples
In class, have students make a simple sketch of an outcrop shown in a slide (or computer projection) then discuss possible interpretations.

Rivers: Short In-class Activity part of 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.

Ocean Stratigraphy Challenge part of Examples
A 15-20 minute think-pair-share activity interpreting a deep-sea sediment core combining concepts from oceanography, sedimentology, and plate tectonics.