Don't just tell your class about Darwin's finches ... show them! Sort some of science's most famous birds using an interactive lesson. Learners try their hand at classifying finches using song, sonogram, and beak appearance, as well as...

In this amphibians learning exercise, students click on the links in the questions about amphibians to find the answers to the questions and then come back and answer the questions. Students answer 10 questions total.