This book is the result of a final year course on teaching embryology to secondary school students. The initial work, with the aim of transforming scientific language into models and games for teaching embryology, took place in 2005. However, the educational material produced has been used in schools to this day. Therefore, in order to publicise the work so that other teachers have access to the construction of similar materials, the work was written up in book form, maintaining its initial integrity. The work was developed by the author Talita Sarah Mazzoni and supervised by Professors Dr Maria Dalva Cesario (Department of Morphology) and Dr Angelina Batista (Department of Education) - Botucatu Biosciences Institute - Paulista State University - UNESP - Botucatu, SP. Talita is currently Professor of Embryology at the Department of Cell and Developmental Biology of the Institute of Biomedical Sciences - Federal University of Alfenas - UNIFAL - Alfenas, MG.