Create an ellipse using an envelope of lines with Cabri Jr.
Before the Activity
Students should have access to either the TI-83 or TI-84 family of calculators and a copy of the attached .pdf file.
During the Activity
Students will create an ellipse using an envelope of lines with Cabri Jr.
After the Activity
Review student answers:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary