PL
In this article, one of the main postulates of the Merano Programme for teaching mathematics will be analysed, namely: teaching thinking in terms of functions. This postulate will be discussed in the context of its implementation at Torun Classical Grammar School. Through the detailed analysis of mathematics curricula implemented in the Torun lassical Grammar School at the beginning of the twentieth century, the mathematical textbooks then used and school-leaving examinations problems from the years 1905‒1911, the degree of fulfillment of the said postulate of the Merano Programme at the Torun school will be assessed.