In Spring 2020, I developed and delivered online guest lectures for a group of second graders.
We continued our exploration of geometry with the Pythagorean theorem. We explored a cut and rearrange proof (pptx).
We concluded our explorations with the construction of natural numbers based on Peano’s Axioms. First, I explained the notion of axiom, then explained Peano’s axioms (pptx), and finished with a proof by induction (pptx).