Jennifer M. Bay-Williams & Karen S. Karp 
Elementary and Middle School Mathematics: Teaching Developmentally, Global Edition [PDF ebook] 

Elementary and Middle School Mathematics illustrates how children in Pre K to 8th grade learn math, and then shows the most effective methods of teaching math using problem-based activities. Examples of real student work and common challenges help you visualize developmentally appropriate mathematics instruction and assessment that supports and challenges all learners. Clear discussions detail how to teach each topic, what a learning progression for that topic might be, and what worthwhile tasks look like. Hundreds of classroom-ready activities show how you can engage students with the concepts. A valuable reference to consult throughout your teaching career, Elementary and Middle School Mathematics helps you develop pedagogical strategies now, and in your future teaching. The 11th Edition, Global Edition, reflects the Common Core State Standards and NCTM’s Principles to Actions, as well as current research and the latest teaching technology.