Objective: We can prove triangles congruent by using vertical angles.
Introduction: Voki
Activity: GeoGebra Vertical Angles
Objective: We will be able to prove triangles congruent by using alternate interior angles
Introduction: When to parallel lines are cut by a transversal, we know that alternate interior angles are equal. What could this mean and how could we use it in proofs?
Activity: Desmos Alternate Interior Angles
Objective: We can prove triangles congruent by using the perpendicular bisector theorem.
Introduction: A perpendicular bisector forms a right angle with a line, as well as divides it into two equal parts. What could this mean and how could we use it in proofs?
Activity: NCTM Perpendicular Bisector
Objective: We can prove triangles congruent by using midpoints and bisectors.
Objective: We can prove triangles congruent by using altitude and median.
Objective: We can prove triangles congruent by using addition and subtraction of lines and angles.