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 attempt the assessment task individually. You then review students' solutions and formulate questions that will help them improve their work.
During the lesson, students work collaboratively in pairs or threes, plotting graphs, completing tables of values and deducing equations. Then, based on the number of common solutions, students link these representations.
After a final whole-class discussion, students work individually on a new assessment task.