From 1736 Konarski taught at the Collegium Resoviense in Rzeszów and in 1740 he started the Collegium Nobilium in Warsaw, a school for sons of the people of high social class ("szlachta"). Thereafter, he improved teaching of Piarists in Poland, in a way that agrees with his program of teaching ("Ordinationes Visitationis Apostolicae...", 1755). His improvements became an important point in the fight of 18th century to make the system of Polish teaching more modern.