In my experience (working with college freshmen mostly), I've tried to emphasize precise vocabulary about the concepts and syntax related to creating and changing variables. This is wording like:
My reasoning is that these words are immediately necessary to understand error messages, intermediately necessary to Google things, and necessary in the long term to communicate to other programmers.
However, some teachers I've talked to try to avoid this type of language because they feel it introduces another barrier to their students' understanding. I guess they'd say I'm trying to introduce compiler concepts too early.
What's your view? How do you know when there's too much jargon?