Daniel 
Using the Standards — Number & Operations, Grade 2 [PDF ebook] 

Focusing entirely on Number and Operations, this book delves into three major content areas of the NCTM standards-Number Systems, Operations, and Computation. Students explore the relationships between numbers, the meaning of various operations and how they relate, and the techniques that make computation a breeze. Various formats of questions allow students to address one or more of the NCTM process strands on each page. The standards correlation chart and icons at the top of each page identify effective activities utilizing Problem Solving, Reasoning and Proof, Communication, Connections, and Representation. Skill checks and cumulative tests are included as well as vocabulary cards to help reinforce mathematical terms and symbols. Answer key provided