when calculus teacher struggles with basic arithmetic
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- Опубліковано 16 вер 2021
- I was making a video on integral by partial fraction decomposition for my calculus 2 students but I struggled to evaluate 8(4)^2 😆
Partial fraction tutorial on Just Calculus • Integration By Partial...
0:06 no!
128
@@Sammy58328 nice
Imagine getting powers of 2 wrong and getting calculus right XD
rip
I have a question
Which will be bigger
Factorial infinity or infinity raised to power infinity.
Weird question but please post a video on this.
Algebra: holy crap a variable!
Calculus: holy crap a number!
Ahahahahahhaha
@@ErdemtugsC58 minutes ago nice
@@isavenewspapers8890 caught in 30 minutes
@@ErdemtugsC 6 mins got yo
@@anasmaher4783 3 minutes we can push it!
Finally, you need to rely on the beginner's method to verify the multiplication.
That's true 😂
But hey, it works.
thats why after solving a long ass integer I need to use the calculator to add 7+8. I can't trust myself
I did the 666th like!
His pocket calculator (aka his phone) Am I a joke to u????
When you learn advanced high school calculus but forget the preschool maths
Advanced? Calculus, especially at a high school level, is one of the easiest branches of math.
@@PubicGore high school calc is mostly just simple derivatives and limits and intro to integrals
@@PubicGore Hence "advanced **high school** calculus", you guys gotta stop acting all smart over a simple joke relax.
@@PubicGore bro come to India you wouldn't be able to solve tough problems of calc 1 your USA is a joke its winning IMO olympiad competition just because of migrant students from other countries such as China. Your own native people wouldn't even able to solve a question🤣🤣🤣
@@hammurabitheawesome674 He didn't say, "High school calculus." It says, "Calculus, ESPECIALLY at a high school level, is one of the easiest branches of math."
I always enjoy this moment as a break in my class
Me too, if it's online class, I seize this opportunity to go for an attack
In clash of clans*
@@sivaprasath3638 lol
@@sivaprasath3638 nice which townhall ?
Me too broo
I had a math professor in college who, when he made small mistakes, would look at his chalk say "You failed me!" and throw it behind him without looking and immediately pickup another piece. He would sometimes hit students on accident with them and it made everyone crack up.
Good teacher eh
kind of like a board gamer who sends his dice to dice prison.
Math teachers always have the best humor
Crack up their skull eith the chalk lol
It was on purpose
(Multiplies two powers of 2 together)
(Doesn't get a power of 2 as an answer)
*Something's wrong, I can feel it*
As a software dev, I saw that and the thought process was "ok, 2^3 * (2^2)^2 = 2^7 = 128"
@@jaolen bro what is this obsession with 2 XD
@@InvoRL They mentioned they are a software developer. Hence uses binary. Hence 2. Plus powers of 2 are just simply cool.
@@caenir makes more sense now thx, I'm only 16 lmao
6 minutes slim shady you’re on
Arithmetic is by far the hardest thing about calculus. That and algebra 1 mistakes were the only thing between me and perfect test scores about 98% of the time.
@@22mertyaroglu41 brilliant
@@22mertyaroglu41 Dumbass 100 - 98 is the definite integral of shrodinger's equation from -infinity to infinity tranformed to the imaginary plane.
Kids these days...
@@Rob4thawin tell me you’re a virgin without telling me you’re a virgin
@Excel knowing that does though
@@EggwithSubscribers-mz9du Tell me you’re dumb without telling me you’re dumb.
Next Calculus Tip:
If you are struggling to integrate a function, just think of a new function that differentiates into the original function 🤯
You can only really do this for relatively simple functions
@@two697 well yeah, that's why it's a joke.
@@two697That's the joke
That's exactly what I do in MCQ tests, sometimes differentiating 4 functions is easier than integrating 1
@@programmerpctheory1413 JEE Boi detected, hi!
Impressive since even if he got it wrong, the teacher knew it was gonna be an integer.
I made the integral where all the A, B, C are integers for sanity purpose 😂
@@bprpfast lmao
So relatable. My 300 level math professor couldn’t decide whether pi/3 was more or less than 1.2 yesterday…
Oh no, even if you only divide the integer component of pi(3) by 3 and leave the rest, it’s still less than 1.2
@@benjobenjowherry That doesn't sound right..
@@benjobenjowherry pi(3) is 2.
@@andrasfogarasi5014 How?
@@andrasfogarasi5014 he saying the first digit of pi is 3
The fact that he's holding a pokeball for no reason makes me want to understand more with the math calculus he's explaining even though i'm not a math enjoyer xD
That's his microphone.
That’s a microphone
That's the microphone
That is indeed, the microphone.
Phonemicro
I hadn’t had my coffee ☕️ 😢
For me this video has a lot of messages and meanings.
And ... With coffee or without coffee I love you.
Start Integral tricks series
Without pen and paper I calculated it it should be 104 not 144 and not 124
Prove that 1 is less than 2
@@hassanawdi3793 now do it with pen and paper 👍.
The “I give up” and reached for a calculator moment is something that happens to all of us.
* happens
@@robertveith6383 fixed
"Of course, I did that on purpose. Your task is to find the mistake!"
Relatable
The similar thing happens in the chess community, when IM Rosen struggles with 100+ rated puzzle but wiped the 2k+ rated puzzle out : )
Yea sometimes you look so far Ahead in your calculation that you miss hanging rook.😂
GothamChess has made is to the Calculus side of YT I see
"dah! it was so simple"
Why are chess related comments everywhere nowadays
@@hermionegranger7849 because it's Magnusifent
I remember when I answered a question on the alphabet and combinatorics in high school, and the teacher let me redo it. I forget exactly what the question was, something like how many ways could you rearrange all the capital letters in the alphabet or something. I still got it wrong, and couldn't for the life of me figure out why. Then the teacher asked me flatly: how many capital letters are there...yeah, apparently not 52...
Oooh you were thinking about cards!
@@bprpfast total letters small and caps combined are also 52 :D
I remember having the discrete maths final for my college class, and my professor literally wrote the entire alphabet on the board, so no one messes up.
@@Diaming787 lol
ua-cam.com/video/Z67zK4B6cfU/v-deo.html
As a teacher this is too relatable. I just ask the class as if I'm testing them
Lol 😅, always works right?
😂😂
Why tf is it relatable!!??
Bruh... Go learn basic math😂😂😂
@@dpspranayhigh level players forgetting the layout of first level😅
man i figured my teacher was probably doing that
Damn, he doesn't have that one kid who's always ready to correct the dumb mistakes? There would've been blood curdling screams in my calculus class
he was recording a video, there was no live class.
It's me. I'm that one kid 🙋♂️
@@aakarshsaggar7795 Really? wow
@@aakarshsaggar7795then why will he include this in video, maybe to make it fun
The difference between "Math" and "Arithmetic"!
Can tell a non-programmer when multiplying two powers of two doesn't become a power of 2. A programmer might have goofed and called it 64 or 256, but unlikely 144 or 124.
Ikr XD
(also I have memorized the powers of 2 from 2^1 to 2^30)
@@lololololol1342 2^30??? dang thats impressive
For me its i know 2^10 = 1024 and i can multiply pretty quickly upto like 2^18
and anything below 2^10 is easy
Don't forget Minecraft experience helps too
@@AJ213Probably yes, up to a pityful 64
@@valentin0000 na if you’re counting multiple stacks it goes up way higher, for example i instantly know 6*64 is 384 cause minecraft, 8 is 512, etc.
This is when I'd ask the class to point out the mistake. Confidence is key.
🤣🤣 lmao
ua-cam.com/video/Z67zK4B6cfU/v-deo.html
Been in math education for 7 plus years and I relate to this soooo much! Thank you for posting stuff like this and making us all feel a little more human!
Brudda... This isn't meant to make ya'll feel better!! These are not mistakes that should be made😂😂😂. If a student can't make them, why can a teacher?
This guy is right^ be more like a computer you imperfect mortal
@@dynamicdingus7003 yeah man come to India or China. The students here are actual computers. We're not expected to make a single mistake, so we damn well make sure our teachers don't as well.
I'm appreciate all your efforts teacher.
This video means a lot to me.
This video for me is just another lesson!
I love you teacher.
Again Thank you
That's why I usually write the complicated arithmetic operations on a paper next to me before starting the video.😁
He seems really cool! First video I see of him. I appreciate funny teachers allowing themselves to be vulnerable. I think I'll subscribe :)
Glad to hear!
I love how he starts doing the mental multiplication at the end while chanting in chinese because he likely built the habit of doing so since young
Very comforting when me and him still struggle with it.
Don't worry teach, my mind wipes out much more faster when I'm engaging with equations
This is literally my first period linear algebra class. No one can do arithmetic for the life of them, including the teacher
It can be hell
all jokes aside, and this goes for any hobby/skill/etc, seeing someone whos job is to do that thing struggle at it is actually rlly helpful. it shows you that everyone sometimes struggles with things
Brilliant. As a Math teacher I think this is awesome and even better that you posted it.
The silent stare while redoing the entire problem in your head and the "ah!" motion when you figure it out is *such* a global, classic math teacher thing
I remember one time in my physics class my laid back teacher was explaining an equation then suddenly the quiet kid raises his hand and says teachers you're wrong. He cleaned the blackboard then showed him how its done. Legendary.
this is always been a struggle in most of college math classes. thats why my fav is abstract algebra :)
This is so real, I started calculus this year, and honestly the hardest part is the basic multiplication, you get so use to dealing with algebra that you neglect multiplication and division and so you may be able to differentiate and integrate in seconds, but then you see 18 x 5 and you have to draw out the whole column method and it takes you twice as long.
My teacher is a genius as well who literally comes up with calculus equations in his head for us in seconds and he solves them just as fast and the only time he messes up is by accidentally doing simple multiplication wrong or putting the wrong sign. And it’s like you see in this video, he doesn’t even need to complete it, he just looks at it and is like “wait, this isn’t adding up, what’s wrong, oh there.”
It cracks me up when he actually proceeds to write down the calculation of 8×16
Seeing this question, I think this might be the right time to revise my calculus again. Gotta go solve some questions. I remember I solved like 50-60 questions on this particular type alone but almost a month later the steps have become blurry.
I learned partial fractions yesterday 🙂
One of the most common mistakes I always did on exams were such arithmetic mistakes, my most common (and least favourite) of which is mixing up + and - signs. Normally, I might do something like "4(-2) = 8" which is clearly wrong
So are you able to reduce 128/17 or would that be the answer?
I love how he leaned back when he realized what it actually should be
It's funny because of how relatable it is
16 × 8 = 128
A= (128-40-3) /17
A=85/17
A=5
Yayyy
@@prakharverma1671 🥳😂
@@likitadevi yeah, it's pretty easy lmao 😂
@@ricaldo3542 Exactly 😂
85/17 is not 5
He said "and if you look at this" then he really looked at it😂
Much respect for posting BPRP x
When you're in advanced calculus and you don't know your times tables.
dammit that's me :(
How far along the natural number line do people learn times tables? I recall only being forced to memorize 1 to 12 multiplied by 1 to 12.
@@linksauce_1infinity
It's funny how one's brain can shut down for a couple of minutes. It happens to me a lot!
You really gave me confidence here 😅
This is literally what happened in my math exam 😭 I forgot the basic stuff but did all the complicated stuff with ease
Sometimes the hardest questions come from the easiest topics ;)
This literally happened to me ealier. I was playing with math, writing and computing just for fun. I was computing for the hypothenuse of the triangle with sides 7 and 15. So I wrote 7²+15²=c². 7² was quite easy but 15 was hard.
2
15
x15
---------
75
+15
---------
125
And immediately, you can see what's wrong. But somehow, I missed it completely. I continued writing, "49+125=174, √174=√c², 13.19=c". After some time, I felt like something was wrong after looking at it. I checked my calculator, and I was a hundred off from 15². It's supposed to be 225 but I forgot to add the carry from when I multiplied it. The correct answer is 16.55. My answer is so far from the correct answer 😭.
I like how he even goes back and is like "yeah"
this looks exactly like my analysis tutorials 🤣 all of us just nodding yes to whatever the tutor says
0:29 the "thu..thu..thu..thu" he did was just gold.
when you use a calculator to find 0+3, not even capping i do this all the time when deep in thought
I didn't even notice the pokeball until the end lmao
I usually take a nap when it happens
That's why I carry a calculator when I teach. I second guess myself on stuff like 5^5.
And its also because we live in 2021 and its so much easier to just solve arithmetic through a calculator
I once got a math problem in Linear Analysis where I was supposed to prove some formula or something, and then I noticed one mistake during my calculations which forced me to rewrite 2 full papers, and I only had 15 minutes left. That was the most stressful exam I have ever done.
Here's a problem for you to solve.
Normed linear space X and a linear operator T : X -> X such that || T (x) = ||x|| for all x ∈ X. Show that || Tx - Ty || = || x - y || for all x, y ∈ X
always respect students to survive this type of situations
We are all with you! 🤩
😂 thanks!
It's me struggling to count my change at the payment counter
This is a prime example of why math teachers spend more time on things like number decomposition and the Distributive Property (over addition). 😁 Interestingly, I've come across a number of math professors that have said they can't stand doing arithmetic. At first, I thought they were joking, but they were really serious.
Its always the best moment when the teacher is wrong you get to fix them
Every single time I take a math test, I find myself being like "wtf am I doing?" during problems that were a piece of cake 5 minutes before those tests.
In case anyone was wondering A = 5 if you do it correctly lol
I use a calculator for everything. I'm in charge of arranging stuff. My calculator is in charge of 7 x 8. We both have important roles.
I have never seen a teacher struggle with it in my life
Love it sooo accurate!!
Plot twist: he actually had a hard time doing basic arithmetic
Contrary to what most people think, having a degree in mathematics doesn't make you a calculator. Not only is what happened to blackpenredpen completely normal, but anyone who has sat through upper level and graduate level mathematics classes will observe the same thing over and over again. People with PhDs in mathematics from very prestigious universities will make these exact same kinds of mistakes, usually many, many times in a semester. This even happens when the material is clearly well rehearsed by the professor. In general, the social norm amongst mathematics students is to scream out the error as soon as you recognize it, to save the professor as much embarrassment as possible; the faster the error is shouted out, the easier it is for the professor to make it seem like it was a very casual misstep, and allows them to save face. "Ah, yes, right you are! And blah blah..." The truth is simply so many things people take for granted with mental calculation are just completely unnatural. This particular one, 6 times 8, has been cited in the mathematical literature as one particular combination that people often get wrong on the spot, and often have to resort to the basic calculation steps to do.
Normal people, however, still think of mathematics like medieval people did, as some kind of contest of minds. These are people who are impressed by parlor tricks of quick calculation, of the kind peddled by men like Jakow Trachtenberg, or by memorizing long strings of pointless numbers (pi digits).
Absolute truth
There is a relevant correlation between math skills and intelligence, although calculation is negligibly positively correlated to higher intelligence, and long term memorization is only a part of the complete picture of intelligence as it would be treated by a comprehensive, professionally administered IQ assessment.
Holding a Pokéball from Pokémon while writing equations on the board makes this video more interesting and informative.
as a TA who can frame equations perfectly and stumble HARD on the algebra, I feel this
Next video : how to multiply two integers.
Fortunately for me I'm familiar with powers of two so 16×8 is 2⁴×2³=2⁷ which is 128.
"Hey, Jeff, you always have a calculator at hand. Give me this one here real quick."
My teacher always gave the same impression at the end whenever he solved his own error after 10 minutes after trying.
Everyone: talking about mathematics
Me: staring at pokeball duster
I think that's a Pokeball Mic
When you do the sums in your head, question your instinct, and do it long-hand anyway, wasting both your time and ever-degrading sanity :)
1:04 "and if you look at this.." yep im looking 😂
I paused the video, to make that problem, and i struggled a bit too xD
If I had a nickel for every time I did this I would have (32-17)^3/4 +300 nickels.
Hahaha
it should be more than 1
Can't blame them. They haven't seen a number in equation for decades probably, It's always just letters and wierd symbols
🤣 seems its my time to forget numerals😄
WIERD
the similar issue whenever I try to solve partial fraction Integral's!
It's like a chef struggling to boil the water.
The dude knows how to catch Legendary Pokemon but struggle to catch Snorlax...
Haha, it's actually really nice to see teachers make mistakes. Makes them seem more human.
Remember the boxes in divisions?
Remember the vertical sum?
Remember the thing about adding 1 when you went over 10?
Remember how to do a square root manually? (Yeah, me neither, screw that crap, just use a calculator)
Most of my calculus profs were the same way. Always had to pull out a pocket calculator to clean up at the end.
Oh wise Calculus Master,
Why do you have a pokeball In your hand?
Plot twist: There's an Alakazam in there who solves the math problems. This Pokemon is said to have an IQ of 5000.
@@MrTomas7777
Makes sense..
Take love from Bangladesh 🌺
🇧🇩🇧🇩❤❤
We've all been through that experience at some point, LoL !
watching this to prepare for all the mistakes im gonna make on my calc 2 exam tomorrow
So no one’s gonna talk about him casually holding a pokeball?
Yep I was finding this comment
My calc teacher genuinely makes an arithmetic mistake on like 45% of the problems she shows us
Is this true?? Hahaha
@@tarambu427 Mine too. He constantly loses negatives. He said his memoir will be called "The Lost Negative" 😆
I was here before UA-cam recommends this video after 10 years .
My class is doing integration by partial fractions right now! Very interesting coincidence.
I lost it at 0:53
Too relatable
😆
I was like "obviously 8*16 = 126" through the entire video and I'm not even joking lmao
It is 128 😂
What's wrong with everybody? 16*8 = 128
I am a math major. As soon as I got into university, I forgot how to sum and multiply
That feeling when proportions (like a/b = c/d) are the only thing I'm struggling with on differential equations lessons...