Notes from working through algebraic geometry with undergraduates — schemes, morphisms, sheaves, blow-ups. Written to be checkable: definitions fixed, claims justified step by step, not a polished summary of the source text.
These notes come out of a reading seminar working through algebraic geometry from the ground up. Each one is a reconstruction pass — written independently after a discussion, not copied from it — with every claim traced back to a definition or a prior step.