Classroom Mathematics California is a core mathematics program for Grades TK–Algebra 1 that empowers educators with comprehensive resources and innovative strategies that bring the Mathematics Framework’s core principles to life.

Between the Greens

Classroom Mathematics California (CMC)

Categories

See also

Program Organization

Classroom Mathematics California (CMC) is organized into units made up of multi-day lessons designed to build connected understanding across lessons and units. The instructional design reflects the California Mathematics Framework’s emphasis on Big Ideas and interrelated concepts. Each lesson follows a structured sequence, “Explore, Develop (one to three sessions), and Refine”, providing time for students to deepen understanding, practice skills, and reflect on key ideas. Strategy lessons consistently use the Try–Discuss–Connect framework, guiding students to make sense of problems, share and compare strategies, and apply their learning.

Strengths & Considerations

Strengths

Classroom Mathematics California may be a strong fit for districts looking for the following:
Scaffolds and support for access
CMC embeds math language routines directly within each session, though they are not explicitly labeled as Mathematical Language Routines (MLRs). Sentence frames and structured discourse supports are integrated into teacher instructions at the session level. CMC also uses Language Development Proficiency Levels in each session. UDL is woven into the program through a separate, formal UDL planning toolkit that sits alongside the core lessons which supports intentional barrier analysis and instructional planning.
Open, engaging tasks
CMC reflects the CA Math Framework’s vision by developing students’ ability to apply mathematical concepts through contextual problem launches, modeling tasks, and recurring opportunities to represent, analyze, and justify their reasoning. Across daily sessions and extended Data Investigations, students interpret situations, use diagrams, tables, and equations to model relationships, and defend conclusions using evidence from data or representations.
Assessment tools
CMC provides a comprehensive assessment system that aligns to the Big Ideas and supports both formative and summative purposes through lesson quizzes, unit assessments, performance tasks, self-assessment and standards-based mastery checks. Students can demonstrate understanding through written explanation, modeling, reflection pages, oral presentations, and rubric-guided performance tasks, with built-in self-assessment and peer-feedback structures. The digital platform (i-Ready) extends assessment through diagnostics, progress monitoring, and standards reporting, while small-group differentiation tools (reteach, reinforce, extend) connect assessment data directly to instructional next steps.
Planning, Teaching and Teacher Knowledge
Classroom Mathematics California provides a clear instructional roadmap through comprehensive unit, lesson, and session planning tools, supported by an extensive digital platform that enables teachers to plan instruction, assign materials, analyze student work, and access embedded professional learning. Each lesson integrates “Professional Learning” articles and a detailed “Math Background” that unpacks Big Ideas, learning progressions, key visuals, misconceptions, and error alerts, strengthening teachers’ pedagogical content knowledge and supporting just-in-time instructional decisions.

Considerations

Districts may want to consider this when evaluating CMC:
Lesson structure
Lessons are organized within a structured, step-by-step flow that includes early scaffolds and guided models. Districts may wish to examine how this structure affects opportunities for extended exploration and sustained productive struggle within and across lessons. District review teams might look closely at how long students engage in open reasoning before formalization.
Breadth of tools
The breadth of digital tools, embedded resources, and planning components may require intentional onboarding to ensure teachers can navigate and prioritize materials effectively. District review teams should examine how easily teachers can locate, prioritize, and adapt materials within the platform. Consider the level of professional learning needed for effective implementation.

Comparison Focus

How Illustrative Mathematics and Classroom Mathematics California Differ

Both IMKH and Classroom Mathematics California are aligned to the California Math Framework and support conceptual understanding and mathematical reasoning, but they differ in structure and implementation design. The strongest choice will always depend on local needs, professional learning structures, the level of instructional coherence already in place and the evidence collected during the review.

Methodology

Methodology Note

Between the Greens is designed to present narrative, expert-informed profiles of highly rated curriculum options. These do not evaluate effectiveness, assign ratings, or make adoption recommendations and should be considered alongside local priorities and additional committee review.