Remember SCANTRON? How did that work?
1M views · Jun 26, 2026 · Science & Technology
Comments · 2.9K
@tookitogo · 3 months ago · pinned
Very cool video, but one thing: you completely messed up the pencil hardness numbers. The pencils you tested clearly said 4B, 6B, etc. on the barrels, which are from the European system. <b>This is not the same as US hardness numbers.</b><br><br>In the American system, a #1 is soft, #2 is medium, #3 is hard, and #4 is extra hard. <br>The European system uses HB as the midpoint (equivalent to #2), and then “radiates” out from HB towards H (hard) or B (black, i.e. soft). So from super hard to super soft, e.g.: 12H, 10H, 8H, … 3H, 2H, H, HB, B, 2B, 3B, 4B, … 10B, 12B.<br><br>So you definitely cannot call a 12B pencil a “#12”, because a) that would be an ultra-hard pencil on the American scale, b) the European scale requires you to state whether the number is H or B, and c) American #2 is not equivalent to either European 2H or 2B, but is actually two hardness levels away from either one.
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@thewanderingvoice7349 · 2 months ago
I feel like I'm receiving sacred knowledge that has been withheld from me for decades.
291
@prufrockrenegade · 2 months ago
I'm surprised to hear that these were so anxiety-inducing for some people. Whenever I heard a test was gonna be on a Scantron I breathed a sigh of relief because that meant the whole thing would just be multiple choice. Much easier to make educated guesses on questions you're not sure about than with short answer or essays questions. And even if you have no idea about a certain question, you still have a 25% chance of getting it right by just blindly guessing
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@snappycat360 · 3 months ago
remember? my high school still uses these lmao
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@DavidGonzalez-rm9ll · 2 months ago
Never in my life would I have ever imagined myself watching a video about scantrons suggested to me by the YouTube algorithm
394
@tgustafson85 · 2 months ago
Our Scantron machines were on carts, so oftentimes the teacher would have it in the room and you’d find out your score as soon as you took the test
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@d3solate_ · 2 months ago
Every time my teachers talked about the Scantron in middle and high school, they made it seem like it was a sentient being that would determine whether you were worthy to pass the STAAR Test
550
@IznbranahlVideos · 3 months ago
The scantron reader at my high school was in a side room of one of the study halls. Once in a while you'd be in study hall and a teacher would go in the room and start feeding tests through. That thing was LOUD and despite being in a separate closed room you could hear it make a loud 'Clack' every time it marked a wrong answer. -- Once in a while you'd hear it buzz with a 'C-C-C-C-C-L-L-A-A-A-A-A-A-K-K-K-K-K' and everyone cringed because they knew someone just failed their test.
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@AtreidaeChibiko · 3 months ago
As someone who has written exams. The reason you want to know of any questions that a lot of students got wrong. We use it to flag that question for review. Usually it's an indication that the wording is confusing
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@eaglescout1984 · 2 months ago
<a href="https://www.youtube.com/watch?v=x2RvPFvR-CI&t=1570">26:10</a> As a Virginian, I appreciate the bleep. Someone actually made tee shirts that say "eat here, drink here, Fauquier"
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@PXAbstraction · 2 months ago
Back in my high school, they didn't use these for grading tests strangely. They only used them for tracking attendance. The teacher would mark who showed up to class, then scan it for record keeping. We used to call it the Scamtron.
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@kevtris · 3 months ago
PM = preventative maintenance
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