# Desmos and Geogebra Ideas that I Want to Use in My Classroom

Do you ever find the perfect idea for a topic just AFTER you have finished teaching it?  Me too!

This isn't really a blog post, it is a collection of ideas for Desmos or Geogebra that I find that I want to use in my own classroom.  Feel free to click through the links to check out what I am finding!  Check back as I will be adding to this list.

1) Graphing equations of lines - get through the maze: (check out the blog Simplifying Radicals)

Equations of Lines Maze with Desmos

2) Inverse Graph - shows the inverse and the function and the points on each graph.  (check out the blog I Speak Math)

Inverse Graphs

Here is a worksheet that goes with it: Inverse Graph Worksheet

3) Increasing Decreasing Domain Range - uses a turtle moving along a graph to show students increasing and decreasing (check out the blog Reflections of a High School Math Teacher)

Increasing Decreasing Turtle in Motion

4)  This is a blog post that explains why we use radians instead of degrees in calculus.

5) Here is an activity to do as an introduction to radians from (Math Teacher Nerd)

Activity:

1. Using a compass, make a circle on this sheet of paper.

2. Measure the length of the radius and measure a piece of yarn to that length.

3. Using that yarn, lay the yarn on the circle and mark the circle arc that is one yarn's length.

4. Using a protractor, how many degrees (approximately) is this?

5. Now, continue to measure the circle using your yarn. How many yarns (radii) make up a circle?