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Mathway solves your math problems with step-by-step explanations. Mathway is for students, parents, and teachers, and covers the following math subjects: Basic Math | Pre-Algebra | Algebra | Linear Algebra | Trigonometry | Precalculus | Calculus

"Number Dictionary"

Interactive excercises for math!

Learn about the 16 most important angles in trig functions.

Learn about the 16 most important angles in trig functions.

Jefferson Math Project (JMAP) is a nonprofit initiative offering New York math teachers resources that simplify the integration of Regents exam questions into their curriculum.

Free k12 school resources on math, history, social studies, science, living things, space, reading, writing, art and music for k12 students and teachers. Math Basic arithmetic, measurement, shapes, counting number, money, and word problems. Science & Technology Computers, technology, physics, chemistry and engineering for Kindergarten Kids, K-1, and K-2 students. Living Things Free educational resources on living things includes animals, the human body, plants and safety. Art & Music Arts and Music includes art history, music, painting, drawing, theatre and dance. Social Studies social studies includes geography, famous people, holidays and world cultures. Earth Science Geology, oceanography, weather, nature and the environment for kindergarten kids, K-1, and K-2 students. Reading & Writing Language arts includes reading, writing, grammar, poetry, alphabet, and online stories. History America history, world history, and ancient history. U.S. History & Culture Education resources on America includes United States history, government, geography and culture. Space The universe, solar system, stars and space exploration.

While many math geeks out there may have been teased for their love of numbers, it's math that makes the world go round, defining everything from the economy to how the universe itself operates. You can indulge your love of mathematics in these great lectures and lecture series. Some are meant to review the basics and others will keep you on the cutting edge of what renowned researchers are doing in the field, but all will help you expand your knowledge and spend a few hours enjoying a topic you love.