Elementary and Middle School Mathematics: Teaching Developmentally, 8th Edition 
Authors: John A Van de Malle, Karen S Karp and Jennifer M Bay-Williams
Published: 2012
Publisher: Pearson
ISBN: 9780132612265
Format: Retail PDF
Reader Required: Adobe Reader, Adobe Digital Editions

NOTE: access to companion website requires email registration

Tested on the above readers with no problems on laptop and Android tablet. 
Please allow a couple seconds for the seedboxes to kick in, then it should move pretty quick.
Hope this helps with your studies, go for it! :D
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Written by leaders in the field, this best-selling book will guide teachers as they help all Pre-K — 8 learners make sense of math by supporting their own mathematical understanding and effective planning and instruction. 

Elementary and Middle School Mathematics: Teaching Developmentally was written to help teacher candidates and practicing teachers understand mathematics and become more confident in their ability to teach the subject to children in pre-K through eighth grade. Structured for easy reference, offering 23 chapters reflecting the latest research to consult throughout one’s teaching career, the revised edition infuses NCTM and Common Core State Standards with the benefits of problem-based mathematics instruction.

The Eighth Edition better prepares teachers to teach mathematics to all learners by including new strategies for English language learners and students with disabilities. The amount of coverage relating to mathematics in early childhood has been increased. More activities infusing technology and samples of authentic student work are introduced. Increased emphasis on formative assessment, showcased with an icon and notes throughout, guide teachers to master this difficult practice.