In case you are trying the MARS MAP Classroom Challenges for the first time, it is recommended that you read the Brief Guide for teachers and administrators before you get started.
Before the lesson, students work individually on an assessment task that is designed to reveal their current understandings and difficulties. You then review their work and create questions for students to answer in order to improve their solutions.
After a whole-class introduction, students work in small groups. They consider the results of doubling the measurements of a range of shapes in two and three dimensions.
After a whole-class discussion, students return to their original task and try to improve their own responses.
To help you assess how well students are able to solve problems involving area and volume.
To help you identify and assist students who have difficulties with computing perimeters, areas and volumes using formulas.
To help you identify and assist students who have difficulties with finding the relationships between perimeters, areas, and volumes of shapes after scaling.