The new educational program introduces the principle of interdisciplinarity in education. Specifically, the subject of Environmental Studies provides fertile ground for its application, as it familiarizes students with the acquisition of basic concepts as well as social skills. In this context, this aid includes: a concise presentation of the concepts of each chapter, answers to the questions in the school book and the workbook (with explanatory comments and suggestions on how to conduct the tasks), additional exercises, and evaluation criteria. It is aimed both at the fourth-grade student who needs a methodical presentation of each lesson and a guide for school assignments, as well as at the parent or teacher who is looking for additional material for the lesson.