desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math.

free math lessons and math homework help from basic math to algebra, geometry and beyond. students, teachers, parents, and everyone can find solutions to their math problems instantly.

math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. for k-12 kids, teachers and parents.

virtual graph paper is a web application for creating drawings and illustrations on a virtual grid. you can use it right here in your browser. when you are done, your drawing can be downloaded as an svg file.

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interactive maths is a site with a mixture of activities for teaching and learning maths, all of which are based around using technology.

free pre-algebra, algebra, trigonometry, calculus, geometry, statistics and chemistry calculators step-by-step

hundreds of free manipulatives, models, tools, and activities to aid the teaching of mathematics. complimented with a huge bank of dynamically generated questions and answers.