The instructional materials reviewed for Math Expressions Grade K-2 meet expectations for alignment to the Standards. The instructional materials meet expectations for Gateway 1, focus and coherence, Gateway 2, rigor and balance and practice-content connections, and Gateway 3, instructional supports and usability indicators.

The instructional materials reviewed for Math Expressions Grades 3-6 vary in alignment to the CCSSM. All Grades 3-6 meet the expectations for Gateway 1, focus and coherence. The instructional materials for Grades 3-5 meet the expectations for Gateway 2, rigor and practice-content connections, but Grade 6 partially meets due to partially connecting the Standards for Mathematical Content and the Standards for Mathematical Practice (MPs). Since the materials for Grade 6 partially meet expectations for alignment, they were not reviewed for usability in Gateway 3. The materials for Grades 3-5 meet the expectations for alignment as they meet expectations for focus, coherence, rigor, and practice-content connections. The instructional materials for Grades 3-5 meet the expectations for usability in Gateway 3.