My two grown daughters didn't know what records were, or record players. When I told them I played side two of the Abbey Road album over and over again as a kid, they had no idea what I was talking about.
I had to explain the concept of a record once to one of my younger cousins when a song came on the radio and I said, "Oo-I had this song on a 45!" She had no idea what I was talking about, and I had to explain that it was a black plastic disc with grooves on it, and you played it on a machine that scratched it with a needle to make the song play. I felt like Fred Flintstone explaining it to her. She wanted to know why I didn't just download songs onto my phone, and we had *another* conversation about there being no such thing as cell phones when I was a kid/teenager. There were no computers, either. I got an electric typewriter for Christmas my freshman year in high school to type reports on, and I had to go to the library to get books to help write the reports.
From elementary school, two things stand out in my memory. One, we would be so excited when we walked into the classroom and saw the huge slide projector. We would raise our hands eagerly to work it. The slide was like a filmstrip, and you stuck it into the projector. When it beeped, it was time to advance the slide to the next photo. We also watched films in the school auditorium when the weather got too hot to have class. I went to an elementary school built in 1902. There were no air conditioners, nor would we expect there to be. My school had three films:
Lost Horizon, Old Yeller, and
Willy Wonka and the Chocolate Factory. EVERYONE wanted Willy Wonka, and we would cheer when it came on.
Lost Horizon was boring, and
Old Yeller was upsetting.
Second, we had a school assembly once a week in the auditorium, and hear the principal speak about things going on at the school and such. The big deal at Assembly was to be chosen to hold one of the flags when the Pledge of Allegiance was said (and NOBODY thought the pledge was unfair or that it shouldn't be allowed.) Then after the principal spoke, the kids who'd been in trouble the week prior had to line up on the auditorium stage to be paddled. There was no outcry from any of the parents about their kids being paddled, usually they thought that if their kid was being paddled they'd done something to deserve it. This practice stopped when I was in about 3rd grade.
At home, we got one of the first home gaming systems, Intellivision. You had three choices: Pong, Doubles Tennis Pong, or Hockey Pong. We played Pong for hours and hours. When we got an Atari 2600 some years later, we really thought we were hot stuff.