This concept teaches students how to write two-column proofs, and provides proofs for the Right Angle Theorem, Same Angle Supplements Theorem, and Vertical Angles Theorem.
This video shows how to work step-by-step through one or more of the examples in Two Column Proofs.
This video gives more detail about the mathematical principles presented in Two Column Proofs.
A list of student-submitted discussion questions for Two-Column Proofs.
You can use fact-based reasons to strengthen your arguments and build convincing statements.
This study guide reviews proofs: algebraic proof, properties of congruence, and geometric proofs (two-column).