We started our geometry unit with an introduction to polygons. Polygons are flat (2-D), closed figures with three or more straight sides that don’t cross. We sorted polygons on the Activboard.
Then we read the The Greedy Triangle by Marilyn Burns. Bored and dissatisfied with his life, a triangle visits a local shapeshifter to add another side and angle to his shape. Poof! He becomes a quadrilateral. But then he gets greedy and keeps adding angles until he’s completely transformed. As we read the story, the children used Popsicle sticks to make each polygon.
We wrote friendly letters to children who attend the Sierra Leone International Mission School (SLIMS) in Africa. They were hand delivered by one of the KRCS Board members. Less than a week later, we received individual responses. The children were so excited to learn they have new friends in Africa! The letters are displayed in the hallway.