News from the Investigations Center for Curriculum and Professional Development


How Fourth-Graders Made Me a Mathematician Again

Our colleague Reva Kasman, one of the authors of But Why Does It Work?, wrote a wonderful article about how her work with elementary teachers, on a project focused on bringing mathematical argument into 2nd-5th grade classrooms, made her “ponder the big question: What exactly is a mathematician? What do mathematicians do and why was it so clear to me that these students were functioning as communities of mathematicians?”. (MAA Focus, August/September, 2017)


A New School Year

Read about the Larkspur-Cordera School District getting ready for a new school year. We are happy to be working with them on the implementation of Investigation 3. (August 25, 2017)


MA Math Hall of Fame

We are thrilled to announce that our colleague, Deborah Schifter, has joined Susan Jo Russell in the Massachusetts Mathematics Hall of Fame. At the induction ceremony, Deborah said, “There are many things I am grateful for in my career, but at the top is the opportunity to channel the insight, intelligence & wisdom of…amazing teachers.” How lovely that many of those teachers were in the room. (June 27, 2017)


Want Better Math Students? Argue.

An interview with Deborah Schifter, one of the authors of But Why Does It Work?. Learn about “how argumentation, reasoning, and proof can advance math learning, even at a young age.” (May 10, 2017)

But Why Does It Work?

We are thrilled to announce a new book by our colleagues Susan Jo Russell, Deborah Schifter, Reva Kasman, Virginia Bastable, and Traci Higgins! This book helps teachers learn how to develop students’ abilities to justify their thinking and engage with the reasoning of others. It includes links to classroom video examples. Learn more and download a sample. (March 29, 2017)

Ed Reports: Authors’ Response

Read the authors’ response to EdReports review of Investigations 3. (March 22, 2017)

Ed Reports: Publisher’s Response

Read the publishers’ response to Ed Reports’ review of Grades K-2 and Grades 3-5 of Investigations 3. (March 15, 2017)

Author Talks

We are excited to announce the first in a series of free webinars, hosted by the Investigations Center for Curriculum and Professional Development. Join authors Keith Cochran and Karen Economopoulos as they discuss content and features of the 3rd edition of Investigations. Learn about future webinars and access recordings of past webinars. (October, 2016)

Investigations 3 Professional Development

We are thrilled to announce a new professional development experience, specific to Investigations 3. The Investigations 3 Institute, designed for new and experienced users of Investigations, focuses on what’s new and different about Investigations 3. Learn more about other professional development offerings, which are being updated to incorporate Investigations 3. (June, 2016)

The 3rd Edition!

We are excited to announce the release of the 3rd edition! Learn about the highlights of Investigations 3. (April, 2016)