The Amity classroom teacher assigns each student to a field group and each group is assigned a single Nature’s Classroom teacher. Together, the members of the group focus on concepts and themes and their connection to the total life support system as they explore the natural environment. For example, the field group might examine producer – consumer – and decomposer concepts, predator – prey relationships, or life cycles. The theme of “Changes through Time” may be an approach taken by a field group. Field group leaders provide an immediate Nature's Classroom "staff connection" for all Amity students.