What Is a Mammal?

This entire series of books on animals, their habitats, life cycles, etc. are wonderful! I own 13 of them now. I use these with my first graders during our animal unit. Each book has fantastic pictures and drawings. The information is presented very well but also simply enough that primary aged students can grasp the concepts and find it fascinating. The books also enable themselves to be read in pieces if you want to skip something or focus on a certain area. I highly recommend books by Bobbie Kalman!