# Standards:

• Common Core
• HSG.GPE.B.5 – Prove the slope criteria for parallel and perpendicular lines and use them to solve geometric problems (e.g., find the equation of a line parallel or perpendicular to a given line that passes through a given point).
• TEKS
• A.2(E) – write the equation of a line that contains a given point and is parallel to a given line
• A.2(F) – write the equation of a line that contains a given point and is perpendicular to a given line

## 2 thoughts on “Parallel & Perpendicular Lines”

1. This lesson is impressive, as an aspiring math teacher the creativity and craftiness of this lesson is motivating. To whom could I attribute this lesson?

1. Thank you for the kind words, Joshua! I stole the Google Slides idea from Dan Meyer. The 2nd page of the warm up is from Don Steward. Finally, some of the spiraling problems are from our released state exams.

Hope that helps. Good luck with the beginnings of your career!

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