Instructional Video
Sophia Learning

Sophia: Intermediate Proof

9th - 10th Standards
Use the two-column proof and the flow proof to prove two triangles congruent.
Instructional Video
Sophia Learning

Sophia: Types of Proofs

9th - 10th Standards
Explore the similarities and differences between paragraph proofs, flow chart proofs, and two-column proofs. Assess learning with a quiz.