This launch, explore, summarize lesson plan focuses on exploring geometric perimeter using the children's book Spaghetti and Meatballs for All by Marilyn Burns. Teachers may follow this lesson plan as a read aloud while students work with the suggested manipulatives (squares and counters). Guiding questions are posed for teachers to ask throughout the book. Before teaching this lesson, I always posted my questions on Post-It Notes in the book to know where to stop without glancing back and forth at the lesson plan on paper. A simple table is provided for students to use as they further explore perimeter. This table can be created in an interactive math notebook.