typing--it was a class, you had to do it quickly and accurately. there was no spell check or cut & paste! I hated my typing teacher. She would smack our fingers with a ruler if we didn't have our fingers 'just right' on the key board.
Home Ec Class! - Home Economics class was taught to all the girls in school to teach them how to be a housewife, more or less. Guys didn't participate because while we were in the "kitchen" they had shop class.
Heavy wooden tennis rackets with frames to keep them from warping. There was a resurgence of interest in tennis going on around the time of the Battle of the Sexes II in 1973 between Billie Jean King and Bobby Riggs. Even I wanted to learn to play tennis.