訓 さず(ける) ・ 音 ジュ
Sino-Vietnamese: thụ
Take 受 (to receive) and add a hand 扌: the extra active hand flips receiving into giving. Hence kyouju (professor) and jugyou (a class being taught).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
授業は九時に始まります。 (じゅぎょうはくじにはじまります)
Class starts at nine o'clock.