in any significant way

What does ‘in any significant way’ mean in the following sentence?

The learner is considered not to have used the SCO in any significant way.

More context is needed in order to explain fully, but probably the SCO hasn’t been used to good effect.

The learner has not used the SCO for any great length of time, or to do any real, important tasks. It implies that they may have used it briefly or casually.

By the way, what does “SCO” stand for here?

SCO stands for ‘Sharable Content Object’ and is a technical subject in e-learning standards.