MTB4 is organized into focused, coherent units with narrow sets of expectations and content. Units are organized around what is assessable and content and skills that are interrelated. With fewer major topics per grade level, students can explore a topic, create their own meaning, revisit the topic throughout the year, build on their understanding, and continually advance in their learning. This enables students to go deeper into the mathematics with better understanding. Students are given regular opportunities to explore, develop, discuss, and refine their strategies and mathematical ideas. This solid conceptual foundation gives students the power to develop fluency with mathematical procedures. Learn more about MTB4’s Focus on Critical Areas and the Focus on Major Work in each grade.