A super nice member!
I teach ages: 1 to 22
Desmos is a clean and functional graphing calculator that functions well on a smart board in web browser.
But it has quite a lot more to it. You can run classroom activities exploring graphing real world situation and developing vocabulary! Have a look at https://teacher.desmos.com/
If your students have tablets or laptops, from simple to complicated (2D only) graphing this is a great tool.
This is a good resource to supplement your maths classroom. If students are struggling and need a different point of view, or want to check their knowledge with some short quiz questions, “Mathisfun.com” is not the most entertaining tool, but it can be helpful for students.