Before the Activity
Provide each student with a copy of the attached .pdf file.
During the Activity
This activity will help students visualize the construction of a trapezoid and determine how difficult it is to construct an isosceles trapezoid. By measuring sides and angles, students can see the properties of these trapezoids preserved when their original construction is modified by dragging a vertex point.
After the Activity
Review student answers
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary