I'm sorry to have to say it, but you will encounter such people throughout your career. While you will meet many wonderful people within the nursing profession, you will also meet some who aren't so wonderful. You'll need to develop the inner strength (backbone) to be responsible for yourself and your actions without being overly concerned about what other people think, say, or do. However, it can hurt your career if you don't establish productive relationships with your colleagues. So, it is worth it to make an extra effort to get along with the majority group within your work group.
I suggest that you do a brutally honest and thorough self-evaluation. Are you doing anything that brings unnecessary negative attention to yourself? For example: Are you asking so many questions that it slows down the class's progress? Are you asking questions that have already been answered? Do your questions cause you to appear a "different" in any way from your classmates in terms of your standards, perfectionism, etc. Does your tone of voice, word selection, and non-verbal behavior suggest to them that you down upon them as if they were your kids? etc. etc. etc. Are there other aspects of your behavior and/or attitudes that bring attention to the fact that you are different from your classmates?
If so, the problem might not be irrational "agism," but rather a clash of cultures and personal styles. If that's the case (which it often is with people of different age groups), you can address those issues one by one and ease the tension a bit. You can be conscious of how your behavior aggravates the differences and work to smooth them over a bit and counteract the negative impression they give your classmates so that they can get beyond your differences and see you more as a colleague than an irritant.
It's not that you need to become "like them" or be their "best buddy," but it might help you to be a little less conspicuous in your differences. Then they will be able to see that you are a nice person inside and you can begin to be supportive of each other rather than an irritant to each other.
While that is probably not the advice you were seeking, I think it is something to consider. I have seen many "older" new graduates struggle with their careers because they could not learn to work with the younger generation as a peer and employee. Remember, when you graduate, you will be working side-by-side with people of all generations as coworkers. Your preceptor, your charge nurse, and your boss may all be considerably younger than you are. You will need to learn to work with them and to meet their expectations of you. Use this experience with your fellow students to begin to learn those important workplace interpersonal skills.
llg (aged 51)