Welcome to Investigations

Investigations is a complete K-5 mathematics curriculum, developed at TERC in Cambridge, Massachusetts. It is designed to help all children understand fundamental ideas of number and operations, geometry, data, measurement and early algebra.

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Workshops and Institutes by TERC

Download a brochure that describes professional development opportunities designed by the authors of Investigations.

Professional Development Institute

March 4-6, 2009
Boston, MA

The Professional Development Institute 1 is designed for math leaders and coaches responsible for professional development in the first two years of implementation of the 2nd edition of Investigations in Number, Data, and Space. Learn More »

Implementation Institute

May 6-8, 2009
Phoenix, AZ

Investigations Implementation Institutes are designed to help school/district teams develop an implementation plan tailored to the 2nd edition of Investigations in Number, Data, and Space. Learn More »

The Re-Vision of Investigations

A major revision (supported by the National Science Foundation, TERC, and Scott Foresman) is now available. Read more about the work that brought about the new edition. Read More »

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Investigations in Number, Data, and Space was developed at TERC and funded in part by the National Science Foundation.