This Instructional Activity is a part of the Lesson 9, Unit 3, Grade 7. The purpose of this game is for students to continue to practice solving linear equations when given in a contextual form. Divide students into groups. There are problems total, so if there are more than students in the class, assign the extra students as the checkers of student work. Each group receives a puzzle (found at the end of the lesson). Depending on the size of the class, some students may receive only one card, while others may have multiple cards.