In 2011, I taught the same three-day lesson to third graders in Korea, fifth graders in Cyprus, and fifth graders in the U.S. The lesson began with a Marilyn Burns book and used manipulatives to work with perimeter and area. Find out how the different groups related to this lesson and how the findings relate to Liping Ma’s research.

Presentation Format: Research Session
Grade Band Audience: Preservice and Inservice, 3 to 5