The need for renewed physics curricula, it suggests to include topics of modern physics. The phenomenology of superconductivity is interesting, because: macroscopic evidence of quantum processes; presentable with simple and motivating experiments; involving interesting technological applications. An approach designed to introduce superconductivity in the high school, based on experiments, aimed to recognize the change in electric and magnetic properties of an YBCO sample at phase transition is presented with some results about experimentations with students.
