In their Young Mathematicians at Work series, Catherine Twomey Fosnot, Maarten Dolk, and Bill Jacob describe an innovative approach to mathematics instruction where teachers help young children construct a deep understanding of numeracy and operations in a math workshop environment that supports the Common Core Standards for Mathematical Practice.

The hallmarks of their approach include:

• Supporting children as they construct mathematical strategies and big ideas
  
• Creating realistic contexts and mathematical models that develop children’s capacity to mathematize their world