mathdash.com
MathDash is an educational resource for learning science, history, language, geography, or general knowledge.
Directory
Science & Mathematics
Science and mathematics collects references, databases and study material for science and maths subjects. The listings cover chemistry, physics, biology, astronomy, earth science and maths, with a mix of reference databases, course pages, calculators, simulations and self-assessment tools. Some entries are large public databases such as compound or species catalogues, and others are small teaching sites or video series. Worth checking: the level each resource aims at, the date of its data and whether the authors are named. Accuracy matters most here, so prefer sources that explain how their numbers were produced.
mathhelp.com
mathhelp is an educational resource for learning science, history, language, geography, or general knowledge.
mathigon.org
Mathigon is a mathematics learning site described as a mathematical playground. It offers free tools, courses and manipulatives intended to make online learning more interactive, including Polypad, fractals, flash cards, timeline, sequences, graph theory and Factris. It also lists lesson plans and teacher resources.
mathispower4u.com
Mathispower4u is a site by James Sousa offering over 9,000 free mini-lessons and example videos, organized by course and topic. The videos are closed captioned, and the site links to YouTube playlists by course. Content covers number sense, algebra, geometry, trigonometry, calculus, statistics and other topics.
mathjax.org
MathJax is a JavaScript display engine for mathematics that works in all browsers. It provides tools to transform print content into accessible web content and ePubs, and the team offers training and consultancy on online teaching materials.
mathonline.wikidot.com
MathOnline is a Wikidot site offering notes on undergraduate mathematics topics, including calculus, linear algebra, topology and number theory. The notes include examples and visuals, and the author states pages may contain typos or errors.
mathportal.org
MathPortal is a mathematics website offering step-by-step online calculators and solvers for topics including polynomial equations, rational expressions, systems of equations, matrices, complex numbers and analytic geometry. It also provides math lessons, formulas and tests. The site states it was designed by mathematician Miloš Petrović, who wrote the calculators, lessons and formulas. A paid homework help service is mentioned.
parkmath.github.io
Park School Mathematics is a site presenting a series of mathematics books, from Book 1: Reasoning and Proving through Book 10: Functions and Models II, plus additional custom books. Book pages list lessons covering topics such as combinatorics, linear equations, quadratic models, graph theory, geometric proof, circular functions, algorithms, logarithms and recursion.
planetmath.org
PlanetMath is a virtual community aiming to make mathematical knowledge more accessible. Its main feature is a mathematics encyclopedia with entries written and reviewed by members, contributed under the Creative Commons By/Share-Alike License and written in LaTeX.
sciencenotes.org
Sciencenotes is an educational resource for learning science, history, language, geography, or general knowledge.
mathworld.wolfram.com
Wolfram MathWorld is a comprehensive encyclopedia of mathematics with 13,000 detailed entries. It is continually updated, extensively illustrated, and includes interactive examples, covering areas such as algebra, geometry, calculus and analysis, and probability and statistics.
play.google.com
Merlin is an educational resource for documentaries, courses, books, reference material, or self-learning.
tmedweb.tulane.edu
Tulane University Pharmacology provides educational lessons, courses, tutorials, or study material for self-learning.
webbook.nist.gov
The NIST Chemistry WebBook provides access to chemical and physical property data for chemical species over the internet. Data come from collections maintained by the NIST Standard Reference Data Program and outside contributors. The system organizes data by chemical species, allows searching by various means, and displays data including thermochemical and thermophysical properties and optical, electronic and mass spectra.
numberfields.asu.edu
NumberFields@home is a research project that uses Internet-connected computers to do research in number theory, with participants downloading and running a free program. It searches for fields with special properties, with the primary application in algebraic number theory. It is based at the school of mathematics at Arizona State University and uses BOINC.
m-selig.ae.illinois.edu
The UIUC Airfoil Data Site is a collection of airfoil coordinates and airfoil related links. Its database covers applications from low Reynolds number airfoils for UAVs and model aircraft to jet transports and wind turbines, and includes over 1600 airfoils listed alphabetically by file name.
andymath.com
Andy Math is an educational resource for learning science, history, language, geography, or general knowledge.
flippedmath.com
Flipped Mastery is an educational resource for learning science, history, language, geography, or general knowledge.
hscmathsbytopic.firsteducation.com.au
HSC Maths By Topic is an educational resource for learning science, history, language, geography, or general knowledge.
mathsisfun.com
Math is Fun explains mathematics in easy language and offers puzzles, games, worksheets and an illustrated dictionary. It is intended for K-12 kids, teachers and parents, and covers topics such as times tables, data, geometry, numbers, money, algebra, calculus and physics.
mathplanet.com
Math Planet is a free platform for learning mathematics, offering high school courses in Pre-algebra, Algebra 1, Algebra 2 and Geometry, plus SAT and ACT preparation with practice tests and tips. It is run by Mattecentrum, a non-profit organization.
mathematics.isodn.org
Mathematical Olympiads Discord Server (MODS) is a Discord server founded in January 2019 for Mathematical Olympiad enthusiasts of all ages to learn and socialise. Its staff post a problem-of-the-day, host monthly contests, and organise other server activities. It is part of the International Science Olympiad Discord Network.
sciencegeek.net
ScienceGeek.net is the website of Andy Allan, a retired science teacher in Visalia, California. It provides resources supporting high school science courses, including chemistry, AP Chemistry, and biology, such as notes, worksheets, labs, PowerPoints, and interactive review activities.
wolframalpha.com
Computational answer engine for math, science, data, conversions, facts, and structured calculations.