French language Q&A Forum

I am doing a writing challenge titled "its not my fault" where there was a translation required of "and my students are very creative"  My response of "et mes étudiants peuvent ..." had "étudiants" crossed out and replaced with "élèves". I would appreciate knowing the rationale for this please?

After more than a year of these lessons, I'd not learned "ce n'est pas" is how you say it is not "something" - for example - "Ce n'est pas une bonne taille."  Great discovery (I found it in a weekend writing lesson) !  Great course !