Wen he says " NO, yo soy la Maestra de ciencias." He does not go to Sciences class he talks with her though.
I would love to help but what is the question?
Me encantaria Ayudar dual es la pregunta?
Answer:
Yes everything is correct, just one thing, " y estoy contento con mis vacaciones." If you are talking about multiple vacations, its correct, if you are referring to one vacation, it would be " y estoy contento con mi vacacion."
Hope this helps :)