There has been a great deal of discussion in recent years about the need to ensure that teachers are competent in the skills, knowledge and understanding related especially to the classroom. Reflective Teaching is believed to be the key towards developing Teacher Professional Competences – Classroom Competences in particular. This book, therefore, investigates the effect of the Reflective Teaching Approach on developing some classroom competences among in-service preparatory school teachers of English in Egypt. The group of the study consisted of 15 (male and female) teachers. The tools included a questionnaire, an observation checklist, three scales and the suggested programme (based on the Reflective Teaching Approach). Results showed that there are highly significant differences on the pre-post administration of the observation checklist favoring post-administration. This reflects the effectiveness of the suggested programme. Recommendations and suggestions are provided.