In this paper I have separated three periods of probability theory teaching: 1. Probability theory teaching in Lithuania during 1920-1940’s. 2. Probability theory teaching in Lithuania during 1960-1990’s. 3. Probability theory teaching in Lithuania during 1991-2000’s. In the prewar Lithuania probability theory was a separate science already, examined in university, applied in other disciplines. In secondary schools subject was not taught yet. At that moment first textbook of probability theory was published: V. Biržiška, Fundamentals of mathematical probability theory: lectures in Lithuanian university during 1928 – 1929’s in Kaunas, 1930, p. 588. This science was very interesting for the mathematicians. Probability theory gained importance in the everyday life, too. At the end of 1940’s elements of probability theory were included into mathematics programs in the further education schools. During 1960-1990’s probability theory was studied in the Lithuanian schools as an optional subject. Course was rather wide and complicated. At that period many additional training aids appeared, scholars carried out research and experiments, searched for optimal methods of teaching probability theory. Science as such was interesting not only for the scientists, methodologists, but for the psychologists, too, who examined children, trying to decide, what age is the best to start learning probability theory. At that moment Vytautas Liutikas published his book „How probabilities of events... [to full text]