What features do scientists use to classify animals into groups? Class groups examine a series of paired images of vertebrates (a bass and a trout, a toad and a newt, a crocodile and a tortoise, an owl and a robin, a tiger and a bear)...

Introduce the logic behind a dichotomous key or administer a group performance assessment with a fun and challenging classification lesson. With explicit instructions for the teacher and for collaborative groups, as well as engaging...