In this thesis, we examine the educational value of Cobra, one of John Zorn's masterpieces of group improvisation, as learning material through performances in classes at an elementary school where Terauchi, one of the authors, taught. In 2013, Terauchi felt that performances of Cobra could empower and encourage various kinds of expression among fifth-grade students in an elementary school in Hiroshima(Terauchi 2015). We also examined classwork for fourth-grade children in the same school, and on the basis of previous classwork, from 2013, we considered how children might become empowered, using their own strengths. We also consider "situated learning" from the viewpoint of Tanimoto, who as a homeroom teacher, is very familiar with children's usual characteristics.