I've recently volunteered as a tutor for "higher-level mathematics" as a Calculus student because I'm required by my school to achieve at least twenty volunteer hours for service learning.
When applying to the NPO as a volunteer, their only position available was for a "higher-level mathematics tutor". I've been a Calculus AB student and T/A for my Calculus AB teacher since the start of the year (we're on our third chapter) and I've only recently touched upon Calculus so I'm unsure whether my skills are on par with "higher-level mathematics".
Soon after I left their building, the connection between "higher-level education" and "higher-level mathematics" hit me. This NPO is from the elementary to the high school level so I became confused.
Could someone define "higher-level mathematics"?