Model illustrates the menstrual cycle, depicting the four states of the average 28 day cycle. Two magnified ovaries show ovum development. Accompanying activity guide facilitates learning about this basic human body function with comprehensive information and discussion materials. Model measures 24”W X 18” H.

Each Model Activity Set consists of a 24" x 18" markable model of durable vinyl and an activity guide. The activity guide introduces background information, and has teacher-developed activities. The guide contains a glossary, a key to the model, color transparencies and a blackline master.