He wrote very large on the blackboard, in a beautiful Italianate handwriting with lots of whirls. Sometimes only one huge formula appeared on the blackboard during the entire period; the rest was handwaving.
Siya wrote malaki sa pisara, sa isang beautiful Italianate sulat-kamay na may maraming mga whirls. Paminsan-minsan lamang sa isang malaking-malaking formula ay lumitaw sa pisara habang ang buong panahon; ang magpahinga ay handwaving.