Big Idea:Time is a challenging concept for third graders. Understanding that change happens over many, many years, and tells a story of life long ago is abstract. The design of this lesson allows students to delve more deeply into these concepts.
Big Idea:The concept of fossilization can be challenging for students. It requires some sense of time movement, changes in the earth, and living organisms dying and leaving behind something after millions of years. This lesson will help build background knowledge.