here you go fedi.

[dulcemaria@ohai.social]

@kirakira instantly disturbed when the teacher wipes away the dry erase pen writing off the clear page with their bare hand

[sollat@beige.party]

@perry @kirakira
It is the same in US English. Most of my schools had these if they weren’t still doing chalkboards.

[chertridge@beige.party]

@kirakira Just in the past couple of days, we were talking about these. Who remembers film strips?

[starcross@mk.absturztau.be]

@kirakira@furry.engineer you know you were in for an interesting math lesson when they pulled this thing and the clear sheets with the dry erase markers
the math specialist comes in and is moving around all sorts of shapes and stuff

[dragonfi@social.jsteuernagel.de]

@kirakira This brings back memories.

[cve@sisyphus.gay]

@kirakira@furry.engineer I played Go on one of those at 38c3 <img class=“not-responsive emoji” src=“https://sisyphus.gay/emoji/neofox/neofox_blep.png” title=“:neofox_blep:” />

[tompearce49@mastodon.scot]

@kirakira Hello old friend. Almost as old as the epidiascope we had in my secondary school. And now I feel REALLY old!

[snapsjaw@critters.gay]

@kirakira@furry.engineer yippee! !! ​​

[eddidoums@yiff.life]

@kirakira @anteumbra I think that someone using an overhead projector to diagram out their polycule would be peak Mastodon.

[cjacobs73_perpetual_chrysalis@thistlenfern.org]

@kirakira This is a welcome blast from the past.

[charlotte@akko.chir.rs]

@kirakira thank you for your offering of polylux

[baralheia@dragonchat.org]

@kirakira W A O W

[eragon@pl.eragon.re]

@kirakira@furry.engineer awwww

I have the lense of one of those in my room

[rinavolpina@rubber.social]

@kirakira heck yeah!! OHP!!!!!

[furrybeta@shark.community]

@kirakira As I crumble into dust, I shout “What about mimeograph machines and their “smell it to get high” copies?”

[kirakira@furry.engineer]

wtf i come back and 100 of you have enjoyed the Technology. thank you for enjoying this Technology

[qualia@floofy.tech]

@kirakira hooting adn FUCKIGN hollerig LOOK AT IT GO

[robotdiver@starlite.rodeo]

@kirakira

Serious flashbacks to my grade 11 math/calculus class and our teacher's hand written lesson guides with letters flaked off that you could not read to save your life. Asking for clarification led to being labeled a problem student. I taught myself math that year.

[jiub@not.an.evilcyberhacker.net]

@perry@mk.absturztau.be @kirakira@furry.engineer they're called overhead projector in english as well (at least in the US)

[dicenbuttons@mastodon.social]

@jcm @kirakira

I graduated highschool in 2007, college a few years later. These things were ubiquitous throughout that experience.

... are they no longer in use? Is it all computers now?

Wild.