I believe high school curricula (at least at the good ones) meet aspects of that in two ways: 1. There are labs / practicals as part of a scientific curriculum

I believe high school curricula (at least at the good ones) meet aspects of that in two ways: 1. There are labs / practicals as part of a scientific curriculum, though ultimately in a controlled fashion. 2. There are projects that allow a student to pursue an open-ended like of inquiry.