Ancient Web: Math Lair Found Real Math Inside Tic-Tac-Toe
Math Lair's tic-tac-toe page turns a solved children's game into an introduction to combinatorial game theory, variants, generalized boards, polyominoes, and strategy.
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Math Lair's tic-tac-toe page turns a solved children's game into an introduction to combinatorial game theory, variants, generalized boards, polyominoes, and strategy.
Patricia Seed's Rice University Latitude site uses maps and linked lessons to explain how latitude, navigation, astronomy, currents, weather, and cartography changed ocean travel.
MadSci Network began in 1995 as a student-run science-literacy project and grew into a volunteer Ask-a-Scientist archive covering tens of thousands of questions, from ordinary classroom problems to wonderfully strange curiosities.
Purdue's old General Chemistry pages on Rutherford and the gold foil experiment are a surviving example of university courseware that escaped the semester it was built for and kept being cited for years.
Joe Wolfe's University of New South Wales sailing page uses Newton's laws, vectors, apparent wind, keel forces, and eighteen-foot skiffs to explain how sailboats move upwind and sometimes faster than the wind.
WhoZoo is a surviving early-2000s educational animal site built around Fort Worth Zoo observations, student species accounts, hand-linked galleries and the kind of school Web publishing that rarely survives intact.
UW-Madison's Virtual Foliage site preserves classroom botany collections assembled from faculty, student and donated slide archives, including Wisconsin trees, fungi and plant diversity material.
Charles Darling began the Guide to Grammar and Writing in 1996 for his students, then expanded it into a free reference with hundreds of indexed topics, quizzes and years of public grammar questions.
Kevin Dunn's old Chemistry 104 site organized chemistry around landmark technologies, asking students to make fire, metals, paper, soap, batteries, glass and other products instead of only reading about them.
Oklahoma State's GeoSET project preserves a 1998 student gallery about the seven border symmetries, complete with class projects and downloadable teaching material.
Frank Smitha's Macrohistory site is a sprawling hand-built world-history project whose century timelines, maps and essays became a long-lived reference for teachers, students and other websites.
Purdue's long-running General Chemistry Help pages preserve a plain, link-driven teaching resource covering atoms, ions and much more, with traces of the browser and courseware Web of the early 2000s.
MIT still hosts the Mayfield Handbook of Technical and Scientific Writing, a sprawling hypertext reference covering document planning, reports, graphics, grammar, citations and technical communication.
The University of Geneva's TECFAMOO used a text-based programmable world for teaching, research and social interaction in the 1990s.
Michelle A. Hoyle's hand-built History of Computing Science, developed from the 1990s into the 2000s, became a durable educational reference cited by courses, books and later computing-history pages.
Owen Williamson's University of Texas at El Paso Master List of Logical Fallacies grew into a widely cited teaching reference for recognizing deceptive, irrelevant and emotionally loaded arguments.