Explain that there are 6 animal groups, each with specific characteristics. Review each of these animal groups with the class: mammals, reptiles, fish, amphibians, insects, and birds. After reviewing, ask students if they noticed any similarities or differences between the animal groups. Next, have students fill in the graphic organizer of animal groups with the correct characteristics. For example, “have scales” belongs in the box for both reptiles and fish. After this, students drag the animals to the boxes of animal characteristics (scales, fur, shell/exoskeleton/skin, feathers). Then have students sort the animals into two groups: “lays eggs” and “gives birth to live young.” Finally, students will sort animals by their animal groups.