Learning goals: Teacher Facing Explain (orally and in writing) how to write an equivalent expression with fewer terms. Generalize (orally) about what strategies are useful and what mistakes are common when writing equivalent expressions with fewer terms. Identify equivalent expressions, and justify (orally and in writing) that they are equivalent. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 7.6 Expressions, Equations, and Inequalities, Grade 7.