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. Learn More »
Welcome to Investigations
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A 3rd edition
The 3rd edition is here! Learn More »
Investigations Classroom Video
View video of Investigations classrooms on Curriculum in the Classroom.
Professional Development by TERC
Visit the Investigations Workshops website for information about face-to-face and online offerings.
News and Events
View information about news and upcoming events.
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