La these traite de la production ecrite, de son emploi pendant les cours de FLE aux lycees tcheques chez les eleves au niveau B1 et de sa methode d'apprentissage. Elle se base sur les resultats du sondage par questionnaire ainsi que des redactions ecrites par les apprenants de FLE de niveau B1. Cette these apporte aussi de nouvelles idees et activites d'incorporation de la production ecrite dans les cours de FLE. Enfin, elle souligne l'importance de la methode de correction et de la retroaction des enseignant(e)s. Basee sur l'ensemble de ces elements, elle propose une Theorie des couleurs dans la correction des travaux d'apprenants.This thesis deals with the writing, its usage during the French language lessons in the Czech grammar schools of the B1 language level students and its way of teaching. The research is based on the results obtained from the questionnaires filled by language teachers and their students, as well as on the texts written by the students of the French as a foreign language. The thesis offers some new ideas and activities, which enable to include the writing into the language lessons. Finally, it points out the importance of the feedback together with the importance of the way of the corrections. On that account, it comes up with the Theory of Colours for the corrections of student's texts.