Students learn about the life cycle of pea plants by planting peas and observing their through their stages of development. Students write and illustrate a book about their pea plant life cycle experience, which functions as a student model to be shared and discussed. Students use the investigation as evidence that life cycles are repeating patterns. Note: This lesson should begin no later than February or early March to be completed before the school year ends given the peas 50-70 day life cycle.