Lesson 579: Explore: The paper boat

Keep a steady pace. The speed target is a guide; 85% accuracy completes a lesson.

The first design leaned to one side and quickly filled. The second had wider edges and stayed upright longer. Two children compared the shapes and explained their guesses. They made another boat with one small change. The table became a laboratory for a very ordinary question. A folded paper boat rested beside a shallow bowl of water. "Shall we try again?" someone asked. We made a short note so that the idea would not be forgotten.