![But Why Does It Work?](https://www.terc.edu/wp-content/uploads/2019/09/product_butwhydoesitwork.jpg)
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.
Score:![Boats, Balloons, and Classroom Video: Science Teaching as Inquiry](https://www.terc.edu/wp-content/uploads/2019/09/product_boats_balloons.jpg)
A professional development approach to science education that views science teaching as inquiry
Score:![Environmental Science and Biocomplexity](https://www.terc.edu/wp-content/uploads/2019/09/product_environmentalscience_biocomplexity.jpg)
An innovative high school curriculum designed around the dynamics of complex and evolving coupled natural and human (CNH) systems.
Score:![Astrobiology: An Integrated Science Approach](https://www.terc.edu/wp-content/uploads/2019/09/product_astrobiology3.jpg)
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.
Score:![<i>Investigations 3</i>](https://www.terc.edu/wp-content/uploads/2019/09/product_investigations.jpg)
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.
Score:![Laurie Brennan](https://www.terc.edu/wp-content/uploads/2019/08/headshot_brennan.jpg)
President
Score:![Honorary and Former Trustees](https://www.terc.edu/wp-content/uploads/2019/09/0.jpg)
Honorary Board Trustees
Arthur Nelson*
TERC Founder
The Nelson Companies and Chairman of TERC Board of Trustees and Trustees Member (1965-2013)
Arthur Nelson worked as a research assistant in the Radiation Laboratory at MIT during the Second World War. He was, in fact, one of the first people to track an airplane with high-power microwave radar, a feat he accomplished standing atop a roof at MIT, beaming the radar off a plane flying overhead by moving the equipment by hand. » Read more
Score:![Professional Development](https://www.terc.edu/wp-content/uploads/2019/09/testimonial3_530.jpg)
The Adult Numeracy Center provides high quality math instruction for adult learners. You’ll learn first-hand how math is present and relevant in everyday life, how you can use this knowledge to improve your life, community, and propel your career.
EMPower Professional Development Workshops
Our in-depth workshops offer exciting opportunities for
adult numeracy teachers interested improving the quality of mathematics
instruction for adults. Designed for all levels of math-comfort, » Read more
![Zoombinis](https://www.terc.edu/wp-content/uploads/2019/08/product_zoombinis.jpg)
Zoombinis, an award-winning adventure game, engages players in guiding little blue Zoombinis on a “fun but perilous” journey featuring 12 logic and computational thinking puzzles, each with 4 levels of difficulty.
Score:![Products & Materials](https://www.terc.edu/wp-content/uploads/2019/09/0.jpg)
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. » Read more
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