This is hands down one of my students' favorite lessons every year! This set comes with 40 animal "trading" cards that represent a very wide variety of species and every basic phylum of the animal kingdom - mammals, fish, reptiles, amphibians and birds.
Each card features a picture of the animals and information about the animal. The information is a mixture of fun facts and revenant details needed to identify which category of vertebrate the animal on the card falls into.
There are countless fun and engaging science lessons / games your class can enjoy with this deck of cards. One of my favorite is putting out stations around the room - a sign for mammals, reptiles, etc. and then shuffling up the cards and having my students work in teams to decide which category each card should be placed in. At the end we sort through the piles as a group and see who does or doesn't agree with where the animals were placed and why. There are lots of other games to play as well! Once you print and laminate these cards they will last you years.