(AmE)Chocolate is good in cake. Sarcasm can be good in the proper context. That actor was good in his last movie. Wine is good in moderation. She"s good in bed. What"s good in this restaurant? Was there some good in these examples?

"good at" however, means adept at performing a particular activity, whether physical or academic. She"s good at math, but he"s good at sports. I think I"m good at English grammar. I know I"m good at solving crossword puzzles. I hope I was good at explaining to lớn you.

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Generally, someone is good at doing something. On the other hand, someone is good in something. However, depending on which dialect you are speaking in, it depends.

For instance,

She"s good at fooling people -at, following procedure/act

But then...

...hiring candidates good in programming -simply, she"s good in coding.

COCA does show 23 results of the phrase "good in math".

However, it"s worth noting that good at something is NOT utterly incorrect. In fact, I think it"s commoner.

Some people just born good at math - Huffington Post


Thinking you are good at math - News from the Ohio State University

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edited Feb 16, năm ngoái at 4:15
answered Feb 16, năm ngoái at 4:07

Maulik VMaulik V
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I think this ngram will help dissolve the matter, at least slightly if not completely.


What I can conclude from this (the wise can extract more significant meanings!)

Good at doing..., good at eating...

Xem thêm: Bảng Thống Kê Kết Quả Xổ Số Miền Bắc Theo Năm, Tuần, Tháng, Thống Kê Xsmb

, etc. Are commoner than good in doing..., good in eating... etc. (The -ing forms used in these examples are actually used as verbs, see ngram)

Good in maths, good in singing, etc. were commoner than good at maths, good at singing, etc. Though the difference in their usage has diminished. (The -ing khung used in these examples is actually used as noun, see ngram)

P.S.: to know what those double underscores mean, lượt thích in _NOUN_, take a look at the ngram info.

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answered Apr 7, năm nhâm thìn at 8:54

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It should be you are good At, but weak In doing something.

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answered Feb 16, năm ngoái at 7:06

David WashingtonDavid Washington
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Good "in" used when the phrase is followed by verb, whereas Good "at" is used when the phrase is followed by a noun.

E.g. - A person is good in writing poemsA person is good at poetry.

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answered Nov 15, năm nhâm thìn at 17:50

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