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

Homo sapiens is

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Module of the day

Barbara McClintock

This module profiles the groundbreaking research of biologist Barbara McClintock in the field of genetics. The module describes McClintock’s painstaking process…

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Term of the day

Cannizzaro, Stanislao

[person] An Italian chemist, born in Palermo, Sicily (1826 – 1910). Cannizzaro published a scientific work on atomic theory in 1860 that…

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