While accepted by many, some educators have criticized constructivism both epistemologically and pedagogically. There are disconnects between this theoretical model and how it is implemented pedagogically and politically. There is disagreement over whether the concept remains useful pedagogically. Therefore, it is both entertaining and pedagogically valuable. There is disagreement over whether the concept is pedagogically useful. Lafforgue is a critic of what he calls the "pedagogically correct" in France's educational system. Although the school expulsion she made was pedagogically acceptable, she had exceeded her legal powers. "There's no way to even pedagogically discuss it," said vocal instructor Bill Schuman. Revisions are made when it is determined to be pedagogically necessary. Pedagogically, the design is based on constructivist and apprenticeship approaches. The first version was arranged pedagogically, describing Law, Faith, and Prayer.