The thesis follows the development of the methodology of left-handers's writing, teacher's usage of the knowledge of methodology in a practice, researching the materials aimed in left- handness dedicated to teachers and parents, describing statements and opinions of the concrete primary teachers on left-hander's methodology. The thesis consists of the theoretical part and the empiric part. In the therotical part there are defined terms laterality and dominance, the development of the methodology of left-hander's writing since the year 1967 when this type of writing was legalised in the Czech Republic. The possibilities of getting information about the problematic of left-handness are summed, including books and trainings for primary school ...