The goal of the vertebrate and invertebrate lessons in Montessori education is to help children categorize and classify animals into two groups: those with backbones (vertebrates) and those without (invertebrates). This process encourages them to organize information and develop scientific thinking skills. The Vertebrates and Invertebrates Charts include the following vertebrates and invertebrates: Chordata, Aves, Reptilia, Mammalia, Amphibia, Pisces, Porifera, Cnidaria, Platyhelminthes, Nemato