103 points

Teacher here. I can explain this as: at any given time only about 1/2 the class is listening to instructions. I’m guessing that 4th period is a smaller class, but they did well because the teacher could better monitor what they were doing. I’d be willing to bet that 7th period is the largest class.

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38 points

Half of the students in second period probably aren’t even awake yet. I normally wasn’t awake/functional until about 3-4th period. Half the time I would sleep through second period 😂

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21 points

This whiteboard all by itself could be used as data that students need to be allowed more sleep.

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10 points

There is certainly a case to be made for pushing school, especially high school, later in the day. And I agree, that would be better.

However, that’s not necessarily going to fix the amount of sleep they’re going to get. No matter when you have to wake up in the morning, some are going to look at it, say “okay, I can go to sleep at X time and get exactly 8 hours of sleep” and then stay up 1-3 hours past that.

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3 points

I have bad insomnia so going to sleep before midnight in order to wake up at 6:30 am, in order to be at school by 7:20 was not fun at all.

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33 points

Plot twist: 4th period was the teacher’s prep period. The teacher burned themself while trying to work out how to keep students from burning themselves.

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2 points

I blame lunch time.

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-2 points

Student here.

  • Forgot instructions when doing practical.
  • Broke cover slip under microscope
  • Paid for the lens (which wasn’t broken, but who cares, it looked like it and they needed money for their parties)
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79 points
*

Assuming it’s real, how could such a record be anywhere close to acceptable? I can’t remember anyone injuring themselves throughout every lab project I had in high school and university.

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29 points

Right, imagine putting up those kinda numbers in any sort of workplace, OSHA would be shutting it down.

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23 points
*

Tbh these numbers dont surprise me much given my experiences as a lab coordinator. The highschool students were far far more prone to mistakes and accidents than the college students were and those were the gifted students. Theyd do stuff like leave broken glassware and glass shards in the dirty glassware bins for me to find. One tried to cause an explosion by turning the gas on for all the bunsen burners and walking out. (Instructor reprimanded for leaving them in the lab unattended, student was expelled) The point is I am not surprised by these numbers at all.

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8 points

That sounds genuinely shocking to me, in what country? Do you not have supervisors for the high school students? At uni you shouldn’t need much supervision, but for teenagers that’s mandatory.

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12 points
*

This was at a community college in the US. Instructors are supposed to be supervising them with lab coordinators supporting them. The lab that had the gas incident was downstairs and the student was left unattended or otherwise gained access to the lab after class. Hence the instructor’s supervisor had a chat with them about not doing that. The biology lab coordinator responsible for those labs found the gas was on and had to shut off the gas.

As for the broken glass, theyd break something then throw it in the dirty glassware bin hoping no one would find out. Which is sad because students shouldnt be afraid of it being found out that they broke glassware on accident. Almost everyone breaks glassware on accident eventually. I just want that broken glassware to be dealt with correctly so I dont find out what they did when dealing with the dirty glassware after class.

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3 points

I bet kids saw the chart and took it as a challenge.

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60 points
*

Middle school science class. We were supposed to be boiling water over an alcohol burner. The kid across from me was getting frustrated because his wasn’t boiling yet. I took a look, and it just looked a little off, so I asked him if he was sure he was boiling water. He gave me a strange look and said that he thought we were boiling the alcohol. Just as he said that, his whole setup went up in flames to the ceiling and all over the table. I’m pretty sure he lost some eyebrows and needed some new pants.

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Who the fuck almost died in second period?

Worse thing that happened in my chemistry class is I accidentally spilled sulfuric acid on my hand and another student painted her face with silver nitrate and then got sent home for being in black face after it reacted to the sun. NGL, that one was funny as hell.

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14 points

Must be the person who put hot glass under cold water and learned something about thermal differentials.

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That’s a great prank to do when someone is sleeping - they wouldn’t know about it when looking in the mirror but then go outside and everyone is clutching their pearls

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47 points

protip: hot glass looks the same as cold glass

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11 points
*

Not always, but once it starts looking different we’ve moved past asking what degree the burn is and into “do you keep the appendage that touched it?”

If you went to the hospital in the back seat of a car? The glass looked room temperature.

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2 points

Haha. Great analogy. Too true.

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2 points

Yeah I think people can get tripped up by the fact that glass does glow red when it’s melty. Don’t fight that thought, lean into it, explain just how wildly hot glass needs to be before it looks any different and what that will do to the biology that touches it

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3 points

Yep. I’ve told many people this.

I’ve also succumbed to confusing that schlenk connector that was just in a flame with the cold one.

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-6 points

False. Really hot glass would glow red, and sometimes cold glass would have condensation depending on the humidity.

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12 points
*

Those are extremes. Hot glass that can easily cause severe burns with a quick touch often looks just like room temp glass.

Edit: I, and many others have told countless people the statement OP made. It’s for your own safety.

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