KEY BENEFIT: Updated in a new eighth edition, this book helps readers make sense of mathematics and become confident in their ability to teach mathematics to all children ages pre-K to 8. The book reflects the view that all mathematics can be taught through a problem-based approach that motivates students and builds their confidence as they learn. Simple yet effective classroom activities are woven throughout the chapters along with accommodations for English language learners and students with disabilities. This professional development edition provides additional strategies to help mathematics coaches and other teacher-leaders support all Pre-K - 8 teachers making sense of teaching mathematics. KEY TOPICS: Introductory chapters provide perspectives on trends in mathematics education and the process of doing mathematics. These chapters develop the core ideas of learning, teaching, planning, and assessing. Additional perspectives on mathematics for students with diverse backgrounds and the role of technological tools are also discussed. The second part of the book serves as the application of the introductory chapters. Chapters cover every major content area in the pre-K-8 mathematics curriculum. Numerous problem-based activities are included that engage students and are interwoven with a discussion of the mathematical curriculum and how students develop their understanding of that content. This edition is uniquely designed to help coaches and other teacher leaders make the most out of the eighth edition, create professional learning opportunities, and utilize resources found on the accompanying PD toolkit: MARKET: For coaches and other teacher-leaders engaged in supporting teachers helping all students make sense of mathematics.