As a teacher of mathematics he was required to teach other topics too, and Weierstrass taught physics, botany, geography, history, German, calligraphy and even gymnastics.
Bilang isang guro ng matematika siya ay kinakailangan ituro sa iba pang paksa masyadong, at Weierstrass tinuturuan physics, botanika, heograpiya, kasaysayan, German, kaligrapya at kahit himnastiko.