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

Which element is classified as metalloid?

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Module of the day

Chemical Equations

Chemical equations are an efficient way to describe chemical reactions. This module explains the shorthand notation used to express how atoms…

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Term of the day

Cartesian plane

[noun] The Cartesian plane, named after the mathematician Rene Descartes, is a plane with a rectangular coordinate system that associates each…

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