Yep. It was in the 90s, and after 7th grade we mostly didn't do it anymore (some court ruled it wasn't legal to force us) but we had to sit quietly during the point when we were supposed to be doing in.
EDIT: You are in your 20s, and your teacher yelled at you? He was breaking the law. I bet you remember who it was too. If you see him on social media, I suggest you send him (West Virginia State Board of Education v. Barnette, 319 U.S. 624 (1943)) and demand an apology.