Physics and chemistry are among the obstacles that affect the cognitive level of the pupil, due to the lack of understanding of how to work on the different positions presented by the exercises and exams of these subjects. Especially how to deal with the matter. Through the support courses that I offer to students, I work to consolidate the participatory relationship between students and these materials, through a special program that I have prepared for each student separately, where graduation is carried out at levels of knowledge and situations from easy to more difficult, and thus train the students on all the possibilities of situations that can be found in exercises, homework or exams.
