The phrase "knowledge level" refers to how much someone knows or understands about a particular subject or topic. It is a way to describe someone's level of expertise or familiarity with that subject. Full definition
This is an excellent way to assess the current knowledge level of the learners and to prepare them for the instructor - led training section of the course. (elearningindustry.com)
Nowadays assignments are made mandatory in every academic institution as it is required to judge the academic skills of graduates to explore extra knowledge level in them. (instantassignmenthelp.com)
A teacher has training experience (changing student knowledge levels). (dummies.com)