## Friday, February 21, 2014

### Making a Face with DESMOS.com

If you haven't worked with desmos yet, you are missing out.  It is so easy and intuitive.  The students will catch on so easily.  Here is the in class assignment I gave today.  This was a precalculus class.  You can easily adjust this for any high school math class.

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

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.
Dave