This was a student's work was done in 15 minutes of class time. There is so much math here too.
Sign up with desmos.com and make a face using the free online calculator.
Your face must include these things:
1. A circle or ellipse
2. A line
3. A sin or cos wave
4. A slider
5. A parabola
Now post your face in a link to this website: http://tinyurl.com/nchsprecalculus6
Please go to this site to see all the wonderful examples that my students made. They will make you smile.
Here are some questions that I had today.
How do you make the sin wave go vertical instead of sideways?
How do you move the circle from the center?
How do you restrict the x values so they don't always show?
How do you make a circle bigger?
How do I make this parabola wider?
Take 15 minutes and make a face today and you will see how much math DESMOS has. Now this was a fun class. The students were really active in their pursuit of the math topics. Please try this and let me know how it goes.