@paysmaths LOVE LOVE LOVE the power of a point. It helps generalize several theorems that students typically learn separately.
Wrote about it here:
https://karendcampe.wordpress.com/2023/10/13/one-big-rule-to-rule-them-all/

#iTeachMath #MTBoS #ClassroomMath #MathEd #MathsEdChat

One “Big Rule” To Rule Them All

We were talking online1 recently about parallel lines that are intersected by a transversal, and that there are multiple ways a student could justify that two particular angles were congruent. Sinc…

Reflections and Tangents