Present a list of endangered animals on the chalkboard or overhead projector. Government and wildlife conservatory websites offer current lists of endangered species.
Focus on three or four animals from the list. Kids will become overloaded if you try to present too much information at once.
Show a photo of each animal as you discuss it, so that the kids can place an image with the information.
Discuss the habitat of each animal and what it eats. Also cover that animal's behavior and what its predators are.
Review why the animal is endangered, whether it's because of poaching, deforestation, or predators.
Answer any questions that the kids have, to ensure they understand and retain the information.
Give the kids a book to read about endangered species, to reinforce what you taught them.