Click here to preview Kassia Omohundro Wedekind’s book Math Exchanges: Guiding Young Mathematicians in Small-Group Meetings. It is full of great advice for working with small groups to build base ten understanding and problem solving skills in kindergarten through grade 2. Omohundro Wedekind describes how to create a culture for mathematical thinking and discovery, and discusses how to teach children to “savor the struggle” in grasping for deep understanding and to find “joy and empowerment within the rigor and struggle.”