Yes and no. You want to build Kino as soon as possible in any relationship, but the classroom setting makes it kinda hard. Once you have established a little rapport, you can do things like nudging her in class, brushing something out of her hair, and lightly bumping her leg. All of those things, sans the nudging, are suggestive, so you want to be on easy terms with her before you try them. That is why it is much easier to get her out of the classroom, ie to coffee or something, where you can be a little more flirty and build kino.
One thing you have going for you, is that there is a certain bit of professionalism expected in the classroom. Once you get her out of that setting, you can immediately be more friendly and push the kino. For instance, when you meet her for coffee, if you can do it boldly, and naturally, just go for a hug as soon as you meet her. You should alway hug women that you know. So if she is somewhat open, just say something like, "Hey!" and give her a hug as soon as you see her (at the coffee shop, or whatever). That may not be possible, you have to judge. However, if you can't get that type of kino going right away, or early, your job is going to be much, much more difficult. If you have those other women there (from class), they will be much more open to a hug, so give them hugs first, and then just naturally turn to her.
Another thing to keep an eye out for:
If there are multiple people when you meet, and probably that is going to be the only way you will be able to get her to come meet you outside of class, be nice to them all, and flirt with them all a fair amount. You don't want to focus on her at first. In fact, it is often better to flirt with the target a little bit less than the rest of the people to begin with. That way she will subconciously feel that she needs to prove her self to you. As soon as she makes an active interest to be part of the group, specifically if it plays to a conversation or question that you started, show a little bit of approval or interest, and slowly give her more attention. Also keep the kino up, by being touchy, in a friendly way with everyone. Be a little more suggestive with her (Obviously, late in the meeting).
If she agrees to a an event, that is an excellent time to get her number. It is natural to ask for it, because you may need to let her know if the plans change. Once you have hung out with her, you can safely start txting game. I or some of the other people on the forum can help you with that. I hate txting, but God invented txting for PUA's like us. It is amazing how much you can accomplish with it.