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khanacademy.org

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

quizlet.com

quizlet makes simple learning tools that let you study anything. start learning today with flashcards, games and learning tools — all for free.

magoosh.com

Mike creates expert lessons and practice questions to guide GMAT students to success. He has over 20 years of teaching experience.

fiveable.me

Study guides with what you need to know for your class on Honors US Government. Ace your next test.

study.com

Take online courses on Study.com that are fun and engaging. Pass exams to earn real college credit. Research schools and degrees to further your education.

physicsclassroom.com

The Physics Classroom serves students, teachers and classrooms by providing classroom-ready resources that utilize an easy-to-understand language that makes learning interactive and multi-dimensional. Written by teachers for teachers and students, The Physics Classroom provides a wealth of resources that meets the varied needs of both students and teachers.

tutorial.math.lamar.edu

welcome to my math notes site. contained in this site are the notes (free and downloadable) that i use to teach algebra, calculus (i, ii and iii) as well as differential equations at lamar university. the notes contain the usual topics that are taught in those courses as well as a few extra topics that i decided to include just because i wanted to. there are also a set of practice problems, with full solutions, to all of the classes except differential equations. in addition there is also a selection of cheat sheets available for download.

flippedmath.com

Math Videos and Practice for the flipped-mastery math classroom and teachers using a flipped learning classroom. All subjects are taught by four teachers who each have over 70 combined years of experience in high school math instruction.

knowt.com

Professional Development Resources for Teachers and Educators

math.libretexts.org

The LibreTexts libraries collectively are a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education.