Decide whether the sentence is grammatically correct or incorrect as written. mi madre siempre me los da por la navidad. (my mother always gives them (shoes) to me for christmas.) correct incorrect

Correct, if you are asking if the sentence just like that is correct in spanish, then it is not, because "them" is not specific ,them can be used to talk about people, pencils, erasers, e.t.c.  But if you talked about the shoes before, then yes, it is correct.

Explanation:

Although it is correct to replace "them" for "shoes", the correct translation would be: mi madre siempre me los da EN Navidad. The preposition is incorrect in this case.