The phrase "experience tutoring" means having previous practice and knowledge in teaching or helping others learn a certain subject or skill. Full definition
Experience tutoring students in history, social studies, math and science. (resume-now.com)
There are also other requirements like having strong math skills, passing a background check, and having prior experience tutoring 6 - 12th grade. (thecollegeinvestor.com)
I have considerable experience tutoring, assisting, and working with students and faculty. (cover-letter-now.com)