If the source says some residents must relocate for a position and I wrote the pediatrician may have to move to find a job. Is that plagiarism

No.

Nope, Plagiarism is copying everything word from word, taking their work.

Hugo is partly right.

https://www.google.com/search?q=define%20plagiarism

But just changing 1 or 3 words out of 10 does not avoid plagiarism.

http://www.plagiarism.org/article/what-is-plagiarism

Thanks @Writeacher :D

Ok and one more question. Is the sentence structure the same? Because my English teaches will count it as plagiarism if the two are similar

@Ms. sue is right, if you see a really good idea just try to put it fully in your words! I do that sometimes @wes

Hugo, that’s called paraphrasing. Did you read what either Ms. Sue or I posted above? Wes should read several of those articles, too.

No, that would not be considered plagiarism. Plagiarism is the act of copying someone else's work, ideas, or words without giving proper credit or citation. In the situation you described, if you paraphrased or rephrased the information from the source in your own words, it is not plagiarism. However, it is still important to give credit to the original source by including a citation or acknowledging where the information came from.