Why is 5+5+5=15 Wrong on Common Core Test

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daftcunt's picture
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Direction does not matter in maths! 

5*3=3*5=5+5+5=3+3+3+3+3

 

I take it this was done in the US? Where they drew the flag wrong for centuries.....

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phanto's picture

I've witnessed this kind of attitude of trying to squash down the students who learn differently and/or faster than others many, many times in all sorts of "education" systems and it makes me sick in my stomach every time I do. 

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danmanjones's picture

The 5 & the 3 are interchangeble. The only one who was right was the student.

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Ozmen's picture
Beta Tester

I get it. I bet the student got only lowered points. Or if the student got a zero despite arriving at the correct answer then the system is wrong. Do the students even get explanations as to why they were wrong?

 

Why does it matter? Because you had five groups of numbers not three groups of numbers. Just because the answer for the sum of both groups was the same doesn't mean you can arrive at the correct result using the same method with different groups. In other words it matters because it was WRONG.

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backdraft's picture
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How does it ever matter if you're doing multiplication with two numbers? Can you give an example? 

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Ozmen's picture
Beta Tester

I stopped following the school curriculum around the third class so I wouldn't know for sure but as far as I know and remember it starts to matter when you move away from everyday numbers like 3 or 84 and so on and start using letters. The higher maths. And to my knowledge coding doesn't allow for that kind of relativity in how you arrive at the result.

 

For every day math you and I use it doesn't matter at all whether it's 3*5 or 5*3 or any variance of two numbers.

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daftcunt's picture
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Is this the trumpish "truth isn't truth" variant? 

 

I have to disappoint you as math does neither care about politics nor about which number is positioned on the left or right side of a multiplication.

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