Curated OER
Critter Museum
Students act as directors of a new science museum where they have decided to set up a display of animals without backbones that are found in the area. To organize their display, they need to sort and classify a collection of animals and...
PBS
Pbs the Shape of Life: Phylum Chordata
From a PBS television series, this site offers a summary of the features which characterize the phylum chordata and includes multiple color photos.