Showing 1-2 of 2 Resources
ActivityIn this lesson, students work through the mathematics and concepts behind George Beadle’s claim that teosinte is the wild ancestor of maize. Also available in Spanish.
ActivityA lesson in which students analyze graphs and data on pollen grains and fern spores to form a picture of the living landscape before and after the K-T mass extinction.
Narrow your choices by selecting areas below.