Mastering the complexity of teaching takes time and requires a lot of practice and sustained effort. Observing and reflecting about actual lessons can play a critical role in the journey to becoming a proficient teacher. It provides a direct window into the classroom, from which practitioners can analyse and reflect about teaching in order to hone their craft.
S. Ambrose, M. Bridges, M. DiPietro, M. Lovett, und M. Norman. John Wiley & Sons, (2010)Learning results from what the student does and thinks and only from what the student does and thinks. The teacher can advance learning only by influencing what the student does to learn. Herbert Simon.