Macro Mania is a classroom adventure that introduces the use of stream macroinvertebrates to determine water quality. Students will learn about the influence of land use on water quality by using macroinvertebrates as indicators. Cards and sorting sheets for six teams are included. Also includes Macro Mania manual with background information and activities, and colorful Macro Mania classroom poster. Expansion Kit includes three decks and three sorting sheets for larger groups.