mathematics

Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.

Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

The Department of Mathematics at the University of Chicago

A Google alternative safe search engine for students offering information and reference sites: art, social sciences,social issues,social problems, history, biography, magazines, newspapers,encyclopedias,science, math, chemistry, biology, and dictionaries.