Ellipses and Technology
Using Desmos graphing software, I constructed a hands-on activity that takes students from the definition of an ellipse (a planar curve where the sum of the distances from any point on that curve to the two foci is equal to a constant) to the equation of an ellipse in standard form.
Link to presentation on ellipses
Link to worksheet
Link to presentation on ellipses
Link to worksheet
Below is a link to the Desmos calculator that was used in the exercise.