"Der Sportunterricht," a compound word made from "sport" and "unterricht" ("class"), or "die Leibesübungen" (from "Liebes," meaning "love"? and "übungen," meaning "calisthenics"). "Die Leibesübungen" is labelled as an education term, but since "der Sportunterricht" has an English word in it, it might be the more colloquial term.