While learning the 7 major classes of Chordates (Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia), use these matching cards to solidify basic student knowledge about each class. Before I even start teaching the specific classes of Chordates, my students practice and memorize how to match these cards perfectly. This way, they see Chordata as a whole group broken into smaller subgroups… and have confidence going into each unit! We use these cards at least once a week to practice. Print them out for each individual student... make them cut them out of course :)... OR print them on cardstock and keep several class sets. Enjoy!