
From David Sease on September 10th, 2018
 25 25 playsThis video demonstrates how to solve a twocolumn proof involving two parallel lines and a transversal. 
From David Sease on September 6th, 2018
 8 8 playsThis video demonstrates how to construct perpendicular lines using a compass, safety compass, and a straight edge. 
From David Sease on September 6th, 2018
 12 12 playsThis video demonstrates how to construct parallel lines using a compass, safety compass, and a straight edge. 
From David Sease on September 6th, 2018
 6 6 playsThis video demonstrates how to find the distance of the hypotenuse of a triangle given two coordinate points. 
From David Sease on September 6th, 2018
 6 6 playsThis video demonstrates how to find the slope, midpoint, and distance of a line on a coordinate plane. 
From David Sease on September 6th, 2018
 8 8 playsThis video examines the characteristics of angle pairs. 
From David Sease on September 6th, 2018
 3 3 playsThis video demonstrates how to find the midpoint of a line segment when given two coordinate points. 
From David Sease on September 6th, 2018
 6 6 playsThis video demonstrates how to classify angles on based on their measurements in degrees. 
From David Sease on September 6th, 2018
 119 119 playsThis video demonstrates how to find the slope of a line given two coordinate points on a graph. 
From David Sease on September 6th, 2018
 7 7 playsThis video demonstrates how to use the angle addition postulate to find variables. 
From David Sease on September 6th, 2018
 2 2 playsThis video demonstrates how to use inductive reasoning to determine an unknown. 
From David Sease on September 6th, 2018
 1 1 playsThis video demonstrates how to find a counterexample when given a conjecture. 
From David Sease on September 6th, 2018
 26 26 playsThis video examines a conditional statement and demonstrates how to write a converse, inverse, contrapositive, and biconditional statement. 
From David Sease on September 6th, 2018
 9 9 playsThis video demonstrates how to complete a segment, twocolumn proof. 
From David Sease on September 6th, 2018
 11 11 playsThis video demonstrates how to solve an angle, twocolumn proof. 
From David Sease on September 6th, 2018
 6 6 playsThis video demonstrates how to gather information about angles based on their markings.