Esercizio numero 6, scuola elementare, 2a classe: questa correzione è da considerarsi corretta in Germania? Se sì, perché?
https://i.redd.it/qx9n8ubshndd1.jpeg
di bigcardo
Esercizio numero 6, scuola elementare, 2a classe: questa correzione è da considerarsi corretta in Germania? Se sì, perché?
https://i.redd.it/qx9n8ubshndd1.jpeg
di bigcardo
19 commenti
It’s not about maths, it’s about language. Zwei mal drei nehmen would mean to take three mandarins two times when you’re supposed to take only two each time.
It’s weird to add that element to a maths question, though.
Oooooof, that’s just typical maths teacher elementary school bullshit. So no, but maths teachers love their “well, the answer is correct, but it’s not the right way, so I deduct points”.
No its not correct you can exchange the numbers however you want if you multiply.
The german word for it is called Kommutativgesetz engl. commutative law.
The teacher is just wrong on this one.
The teacher is saying always take the number how many times you take mandarinen first and how many (2) second. But that doesnt matter on the answer. As i already wrote they can be exchanged with each other.
If you read the Questions it even implies it the way your child did it. It says always take 2 Mandarinen and then it says how many times. I would have done it the same way as your child
What am I seeing here? Unless I’m missing something the pink text is absolutely wrong. Besides the point that 3*2 is the same as 2*3, the result doesn’t make any sense.
The pink text for task 7 is right thogh, you’ve missed the two Lena already had
this is so dumb
Does multiplication commute in your universe? Next thing you’ll tell us that integers with + and · form a ring smh.
>!/s of course, that correction is utterly idiotic.!<
That’s very pedantically corrected. If I were a teacher, I would have given at least half the points.
That looks like one of those stupid “children have to start by doing things by rote” things that elementary school teachers use to torture children who can already do things not by rote.
So, presumably because the language would be “I reach in three times and take two every time”, it needs to be “3 times 2”, not “2 times 3”.
My little godchildren have trouble with that approach on teaching too. A while back one of them didn’t want to start on his homework at all. When my friends investigated, it turns out he had been having trouble with the homework “problem” in school and was highly frustrated. They were supposed to decide which way of doing a very simple addition was “harder” than the other, and he was already at the mental stage where they were both easy, so to him it was totally random. He told them, “I wish I was more stupid”, which is so sad.
Having been in similar situations in school myself: My parents took the approach of telling me, “no, you’re right, this makes no sense, and we all know it, but if your teacher wants it like that, just write it down that way so she leaves you alone”.
The idea was probably to represent the way you would form a sentence in German when speaking. You would rather say “fünf mal zwei Mandarinen greifen” (“grab five times two mandarines”) than the other way around.
But at the same time it shows that elementary school teachers often are very far away from real-life problems and stick to their solutions instead of give explanations and accept other reasonable answers.
Mathematically it is correct, but you could argue that the text is not interpreted right.
i grab 3 times 2 tangerines and not 2 times 3.
Quite stupid to deduct points for that imho.
The result is the same, true, but the kid clearly didn’t read well. The didn’t ask you to “Greife zweimal drei Mandarinen”, but “Greife dreimal zwei Mandarinen”.
Reading comprehension.
No, but the answer is related to the question.
“You have many things.”
“You always take two things at the same time.”
“You are doing it x times.”
Take 3:
3 times 2
Etc.
It’s stupid mathematically because 3 times 2 is the same as 2 times 3. So the calculation of course is correct.
However, and you need to ask the teacher for clarification, this exercise is about understanding the question (the problem) first.
If you ask the same question in the context of a division, you cannot choose the side of the numbers just like that.
Is the order for such operation clear in German/Germany? I got the idea from the comments that one factor is how many times mandarines were taken and the other is how many mandarines per take (according to the task it’s always 2). But there is no instruction what to use first. From the teacher perspective it’s always how many times X how many mandarines, but it’s not in the task or is it?
No, the teacher is just being an asshole. You could argue it’s the order of the language but that has no place in a math homework, also if that’s the purpose of it, there is no instruction to do so. Arithmetically, it is correct and should be graded as such. I would complain to the teacher or their superior.
the first part is the teacher being a dickhead.
some cucks have a god complex where they need to shove some “samethink” into kids like its 1933.
Consider reading for example [the English wikipedia page](https://en.wikipedia.org/wiki/Multiplication). There is a difference between the multiplier (the number of copies) and the multiplicand (the quantity being copied). In the example 2 times 3, 2 would be the multiplier and 3 the multiplicand. This means 2 times 3 = 3 + 3 = 6.
However you’re not supposed to take 3 mandarines and do this 2 times. But you’re supposed to take 2 mandarines and do this 3 times. Of course the principle of commutativity is also known in Germany, but one correctly interpreted the task while the other did not (a core competence in school mathematics).
Looking back – my elementary schooling wasn’t that far ago – I got also confused by this many times and questioned my teachers sanity. However now looking back it makes sense.
Cries in Kommutativgesetz
wow.. not even my math teacher was this pedantic
I’ve heard about primary school teachers making this kind of a correction in different countries. It’s just unnecessary pedanticism of some teachers.