We are TERC, an independent research-based non-profit organization, dedicated to inspiring and supporting all learners through stimulating curricula and programs.

Our forward-thinking and groundbreaking research projects result in insightful and inspiring learning materials, many for free. Curricula, teacher resources, games, web-based tools and more, are published and distributed by a variety of publishers. Here you’ll find all the available products created or co-developed by TERC. To order or download, simply follow the links to the product pages.

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<i>Investigations 3</i>
Investigations 3

Since 1990, schools and districts have chosen Investigations — a focused, coherent, and rigorous K-5 mathematics curriculum that places making sense of mathematics at the heart of the work, for students and for teachers.

Adventures in Ecology
Adventures in Ecology

Adventures in Ecology is about how animals need and acquire energy considering skulls and teeth, body size, and species.

Astrobiology: An Integrated Science Approach
Astrobiology: An Integrated Science Approach

An Integrated Science Approach is a full-year genuinely integrated science curriculum that weaves its way through the disciplines of biology, chemistry, physics, astronomy, and Earth science, as well as sociology, ethics, and the psychology of human thought and behavior.

Banana for Two
Banana for Two

Through this warm, joyful story, part of the Small Talk Books® series, parents and caregivers can learn how to model talk and actions that help children develop a stronger understanding of number and how math is part of our lives.

Beyond Facts and Flashcards: Exploring Math with Your Kids
Beyond Facts and Flashcards: Exploring Math with Your Kids

Beyond Facts and Flashcards presents games and activities that parents and their children can play together.

Boats, Balloons, and Classroom Video: Science Teaching as Inquiry
Boats, Balloons, and Classroom Video: Science Teaching as Inquiry

A professional development approach to science education that views science teaching as inquiry

Building Systems from Scratch
Building Systems from Scratch

We know that students learn from playing educational games. Building Systems from Scratch believes there is more joy and empowerment, and deeper learning when students design the games themselves.

But Why Does It Work?
But Why Does It Work?

A simple, efficient teaching model focused on mathematical argument for developing the ability of students to justify their thinking and engage with the reasoning of others.

Clean Up, Up, Up!
Clean Up, Up, Up!

A playful story that models engaging conversations between parent and child, Clean Up, Up, Up! includes a note by early childhood education expert Susan C. Levine that shows parents and caregivers how everyday activities offer rich opportunities to teach early spatial math concepts.

Connecting Arithmetic to Algebra Course Facilitator’s Guide
Connecting Arithmetic to Algebra Course Facilitator’s Guide

Strategies for Building Algebraic Thinking in Elementary Grades