Question

What is a nonproductive learning behavior?

Answer 1

Desireurban has given a good discussion in the first answer,
but be careful with it:
-- Yes, skimming instead of reading carefully can be non-productive.
-- Using credible sources is MORE productive, and using less reliable sources 
       can be LESS productive.

Another nonproductive learning behavior ... one that I worry about a lot ...
is slapping the question up on Brainly and waiting for someone to give
you the answer, instead of taking some time to think about it.

Answer 2

Well, one is quickly skimming readings and briefly looking at graphics in the reading. Also another is basing opinions on credible sources.