As a teacher of mathematics he had great talents and he presented his subject with great skill. However he seems to have been unable to control the large classes of students who flocked to his lectures:
Bilang isang guro ng matematika niya magaling na talento at ipinapahayag niya ang kanyang paksa na may mahusay na kasanayan. Gayunman siya ay tila hindi ma-control ang mga malalaking klase ng mga mag-aaral na flocked sa kanyang lektura: