Desmos
What it is: Desmos is an incredibly fast online calculator that can graph any imaginable function. It also allows users to add sliders, do regressions, and plot whole data tables, among other things.
Who would love it: Anyone learning math, from middle and high school through graduate school and beyond. Also great for teachers.
Why it’s good: Desmos can be used on any computer or tablet, completely free of charge, and does not even require a download. It seamlessly creates beautiful visual representations and animations, and it allows users to save and share graphs they've created. Desmos makes complex math — whether theoretical or applied — fun, interactive, and accessible.
Why it’s relevant: For many students and math enthusiasts who can't afford graphing calculators, Desmos is leveling the playing field. It is also, in Tech Crunch's words, "platform-agnostic" — so anyone with a computer or tablet can use it anytime. In addition, Desmos is supporting the push toward online textbooks and leading many students to spend their free time creating cool graphs and cultivating a love of math — something that's especially crucial given the growth in STEM-related careers.
Something you didn’t know: The site has an engaging series of classroom activities for teachers. One of these is the Function Carnival, which enables students to watch a video, create a graph, and have that model transformed into an animation. Another is Des-Man, in which students do math artistically — they draw faces with graphs by using domain and range restrictions.
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