Dianne,
To be very clear about this, what Kathita suggests is
accurate; however, to take it one step further for example:
Let's say you have 10 questions that are "knowledge checks"
(that won't be evaluated and that you want to show in your
navigation) and you have 10 more questions that you want assessed
but *don't* want seen in the navigation.
As Kathita mentions, you'd have to create 2 quiz elements,
because the setting to display question slides is controlled via
the Quiz Manager settings...and it just so happens that it's a
global configuration. Meaning that either all of the questions for
a specific quiz are visible in the nav, or they're not.
In addition, IF you're looking to create both non-eval KC's
and assessed questions, you might want to consider creating 2
separate Quiz elements anyway.
Rob