One of my teachers asked me if I needed help with my classwork & I said yes & he said he will sit right there with me while I'll do it,does this mean that he like me a certain way? He doesn't talk to me a lot anymore,but I still want to know.

What do you mean? Your statements are vague.

Working as teachers is an imperious post

no, twat. he's just being nice and giving you every change to succeed his class.
Next time you guys are alone just unzip his zipper and see how he reacts..

Probably it just means that your teacher cares about you getting the education it's his job to provide to you.

It's possible your teacher finds you attractive. Most people find many people attractive but don't necessarily try to have a romantic or sexual relationship with everyone they think is good-looking. (Most people would hardly be able to get anything done if they pursued every single person they found attractive!)

If your teacher is interested in having a romantic relationship with a student, that is inappropriate and possibly illegal.

(In most places it's illegal for a teacher to become involved sexually with a student in middle school or high school even if the student is otherwise old enough to consent to sex, and most school systems as well as colleges and universities have policies prohibiting romantic or sexual relationships between teachers and students, which can lead to the teacher losing his or her job if they violate those rules. Other school authority figures, such as principals, coaches, deans, etc. are often included in this prohibition. The adult teacher or other authority figure may go to jail if the relationship violates the law in that state or country, in addition to losing their job and being unlikely to be hired by other schools in the future, but the student is not punished, as they are considered the victims.)

If you think your teacher is interested in you "that way," your best course of action is to ignore it -- unless he (or she, this applies to female teachers, too, and for either male or female students) makes a "first move" that makes it clear he is interested in pursuing an inappropriate teacher-student relationship. If that happens, you should tell the teacher that you like him and so you don't want to get him in trouble... if he really likes you "that way" that much, he'll be willing to wait until you're no longer a student at that school and are free to date him. Or, of course, you can simply say that you aren't interested -- however, if you aren't interested, or choose to say you aren't even if you think you might be, I recommend also adding that what he said made you uncomfortable, but you won't mention it to anyone else so long as he doesn't say anything like that again.

If a teacher's first move is inappropriate touching, you should definitely report them to school administration, a parent, police or some other adult you trust. You may prefer to get evidence of the inappropriate touching before reporting it to a school official or law enforcement, though, to avoid a "he said - she said" situation in which you may be seen as having less credibility than the teacher. This evidence may be in the form of a corroborating witness -- someone else who saw him touch you, or whom he also touched inappropriately -- or a photograph, video or audio recording, relatively easy to acquire now that many laptops and cellphones have built-in cameras, and stand-alone digital cameras come in various shapes and sizes which can be easy to conceal.

It's also possible for a teacher to just like certain students in an innocent, friendly way, because of shared interests. Often this happens when a teacher specializes in one subject, such as history, mathematics, or literature, and the student in question is interested in the same subject rather than just taking the class to fulfill course requirements for graduation. This kind of friendship can be completely appropriate, so long as it doesn't lead to special treatment which is unfair to other students in the class. When I was in middle and high school, I had a couple of teachers I considered friends as well as teachers... but while you're a student at the school where a teacher works, the teacher always has to be your teacher first and your friend second. After you graduate, your friendship can become more equal.