First and Second Graders Examine the Plant Kingdom Through the Lens of Structures and Functions. What can we learn from plants? Why is there such a wide variety of plants in the world? Why would some plants have large slippery leaves, while others have small fuzzy leaves? Do these structures have a purpose? First and second graders embarked on a mission to answer these questions with the following essential question, “How are structures and functions related?” To kick off our