Indicator 2g.i

Structural evidence across grades 6–8 shows materials intentionally prompt students to construct viable arguments and analyze others' reasoning. [E1] states that throughout the chapter problems require students to justify answers and explain strategies in multiple forms (words, models, equations). [E3] explicitly presents competing student statements (Mariah's, Tom's, Will's) for students to evaluate—directly analyzing the arguments of others. [E2] and [E8] have students explain a proof of the Pythagorean Theorem (8.G.6), [E7] asks students to compare and justify algebraic vs. arithmetic solutions, and [E9] prompts discussion and 'Why can you do this?' justification of structural reasoning.