Exploring Isosceles Trapezoids in Geogebra

8th Grade Geometry students used an open source program called Geogebra to explore tech integration possibilities with their geometry lessons. The students constructed points, lines and angles. After studying the relationships between the length of the lines and the measures of the angles (as Point D varied along line b), they attempted to formulate rules about the diagonals of the isosceles trapezoids. The students needed one class to complete the assignment.