This five day unit, designed specifically for the third grade level, integrates the social and natural sciences. The unit introduces students to how plants were used in the past, and how they are used today. It also incorporates critical thinking skills that will encourage students to explore how plants will play a role in our future. The first lesson introduces students to how the first settlers, the Pilgrims, brought plants with them to the new world. The second lesson discusses how the Native Americans helped the Pilgrims by introducing them to the native wild plants. Lesson 3 explores how settlers used plants as medicine. Lesson 4 is about how the early settlers used plants for household use. Lesson 5 includes a test on the unit, and introduces students to the important role that plants will play in the future. (DB)