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 a task designed to reveal their current levels of understanding. You review their scripts and write questions to help students improve their solutions.
At the beginning of the lesson, there is a whole-class discussion about key features of direct proportionality.
Students then work in small groups on a task related to the assessment task. They write and solve their own questions on direct proportion, exchange questions with another group, assess each other's work, and write suggestions for improvement.
In a whole-class discussion, students share their questions and solution methods, generalizing to identify criteria for identifying direct proportion.
In a follow-up lesson, students use their learning and your questions to review their work.