Order your Developing Mathematical Ideas Casebooks and/or Facilitator Guides below by clicking the title(s) you want to purchase:


Facilitator Guides:

Math Blogs:

The Math/Twitter/Blogosphere is an online community of math educators from PreK-16 who share their ideas, reflections, lessons, and questions through blogs and Twitter. Below are some blogs we recommend. If you have a blog you’d like to suggest, email mike at to let him know. Thanks.

Christopher Danielson: Overthinking My Teaching & Talking Math with Your Kids

Graham Fletcher: Questioning My Metacognition

Hedge: Approximately Normal Experiences in Math

Kristin Gray: Math Minds

Robert Kaplinsky:

Dan Meyer: dy/dan – less helpful

Fawn Nguyen: Finding Ways

Carl Oliver: Carl’s Teaching Blog

Joe Schwartz: Exit 10A

Andrew Stadel: Divisible By 3

Tracy Zager: Becoming the Math Teacher You Wish You’d Had


Collaborating Organizations:

Education Development Center:

EDC designs, implements, and evaluates programs to improve education, health, and economic opportunity worldwide. Collaborating with both public and private partners, we strive for a world where all people are empowered to live healthy, productive lives.

EDC is committed to education that builds knowledge and skill, makes possible a deeper understanding of the world, and engages learners as active, problem-solving participants. While the issues we address are diverse, all that we do is united by our conviction that learning is the liberating force in human development.

National Science Foundation:

Teachers Development Group:
Teachers Development Group is a nonprofit organization dedicated to increasing all students’ mathematical understanding and achievement through meaningful, effective professional development.

National Council of Teachers of Mathematics:
NCTM is the world’s largest mathematics education organization, with more than 100,000 members and 250 Affiliates throughout the United States and Canada.

National Council of Supervisors of Mathematics:
Promoting the importance of mathematics leadership at all levels.

National Staff Development Council:
NSDC’s mission is to ensure success for all students by serving as the international network for those who improve schools and by advancing individual and organization development.

The Massachusetts Mathematics Association of Teacher Educators (MassMATE):

The purpose of Massachusetts Mathematics Association of Teachers Educators (MassMATE) is to provide a forum for mathematics teacher educators to communicate with each other and collaborate with other groups interested in the teaching of mathematics in the state of Massachusetts.  Mathematics teacher educators include but are not limited to faculty at institutions of higher education engaged in teaching mathematics or mathematics education, professional development providers, districts’ mathematics specialists, mathematics teacher educators and consultants at the elementary, secondary, community college and college and university levels.