In Spring 2020, I developed and delivered online guest lectures for a group of second graders.
Areas. An introduction to the area formulas for rectangle, parallelogram, and triangle. [pptx] [Video]
Pythagorean Theorem. An introduction to the proof of the Pythagorean Theorem using cutting and rearranging. [pptx]
Peano’s Axioms. [pptx]
Proofs with Peano’s Axioms. Proofs of addition properties. [pptx]