This Instructional Activity is a part of the Lesson 8, Unit 7, Grade 8. Arrange students in groups of 2. Encourage students to share their reasoning with their partner as they work to complete the table. Give students 10-12 minutes of work time followed by a whole-class discussion. Support for Students with Disabilities Strengths-based Approach: This activity leverages many natural strengths of students with ADHD, LD, and other concrete learners in terms of its use of patterning and support through previously completed example.