A learning space for science educators and students

Free Award-winning Content
Free Award-winning Content

We create and provide high-quality, accessible, educational content in the science, technology, engineering and mathematics (STEM) disciplines at the introductory undergraduate level.

About us
Next Generation Science Standards
We support NGSS

Our exclusive content integrates science and engineering practices with disciplinary core ideas and cross-cutting concepts in alignment with the Next Generation Science Standards.

About NGSS

Quick Quiz

The amplitude of a wave is a measure of its

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Module of the day

César Milstein

From home pregnancy tests to treatment for Ebola, the discovery of monoclonal antibodies has greatly advanced science and medicine. This module…

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Term of the day

electron orbitals

[noun] Three dimensional areas of space, defined by acceptable solutions to the Schrödinger equation, which determine the likely location of any…

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