The materials reviewed for Walch CCSS Integrated Math Series meet expectations for alignment to the CCSSM for high school. The materials meet expectations for Focus and Coherence as they show strengths in: attending to the full intent of the mathematical content for all students; spending the majority of time on content widely applicable as prerequisites; making meaningful connections in a single course and throughout the series; and explicitly identifying and building on knowledge from Grades 6-8. In Gateway 2, for rigor, the series showed strengths in the following areas: opportunities for students to develop procedural skills, working with applications, and displaying a balance among the three aspects of rigor. The materials intentionally develop all of the mathematical practices to their full intent. In Gateway 3, the materials partially meet expectations for Usability as they partially meet expectations for Teacher Supports (Criterion 1), Assessment (Criterion 2), and Student Supports (Criterion 3).