"ontem, meus pais chegaram da Tailândia"

If the Brazilian dialect is what coreana is actually seeking, then you do well to consider her usage of the prepposition de instead of da a mistake. But you should be aware that, in the European dialect, gender is generally not applied to the preppostion de before names (either names of people or places), so that her phrase is absolutely correct (despite the missing graphic accent â, which she couldn't insert, I suppose, because her keyboard doesn't actually contain that character).


"uma festa tradicional de ano novo"

I actually know nothing about the Korean language but, considering the nature of her mistake, I wonder if this language even have any sort of article. Korean is an ancient language, and most ancient languages had no article at all, defined (the) or undefined (a, an, some etc).

E.g. the Latin phrase "Feminæ rosarum coronas amant" might mean either "Women love crowns of roses" or "Some women love the crowns of roses" or even "Women love some crowns of roses". And translating it to Portuguese brings up even more ambiguity, once the Portuguese Language deals better with articles than the English language, thus allowing it to be placed in several different positions within a sentence: "As mulheres amam umas coroas de rosas", "Mulheres amam as coroas de rosas", "As mulheres amam as coroas de rosas".

So this kind of mistake - come from a Korean student - must be emended, but comprehended. You should be aware that these are totally different languages, so that she's supposed to learn several things which doesn't exist in her language, and which she probably has never had notice of before.


"mas não é uma festa como de brsileiro no Brasil"

I honestly didn't get the point in your correction of this phrase, Ʌlexandre. It pretty seems like if you had gotten nothing interesting to write, so you just decided to write it in a different way. The way as she wrote it is perfectly intelligible. I am a native speaker like you and can assure that.


Ʌlexandre: Tanto escritor brasileiro bom e os estrangeiros só pensam em ler P. Coelho…

I won't criticise your opinion about Paulo Coelho, even cause this matter doesn't bring up any interest to me. But I think you have the moral obligation (as someone who means to teach) of at least providing us with the reason why you think so. Otherwise, your point becomes irrelevant.