This article is about educational knowledge and strategies that are to be used in developing the metacognitive skills of the musician in training. We first explain the metacognition’s various components that the teacher must include in his/her teaching to guide the student on the metacognitive level. We then describe the methods of educational intervention that should be favored in order to engage the student musician in a metacognitive approach. Afterwards, we propose two educational strategies derived from educational sciences and created to develop the metacognitive skills of the student. These strategies have been adapted to the specific needs of instrumental practice. These tools offer to the musician-teacher some referents to guide the development of the metacognitive skills of his/her students.