In 1529 he moved to Paris, where in addition to selling books he was asked to teach and gave lectures on Cicero and Demosthenes.

He attended the conferences at Hagenau and Worms in 1540, and at Regensburg in 1541; and went with Bucer to meet the elector of Cologne, in 1542.

But the 1577 Lutheran Formula of Concord reopened the conflict; the theologian Johannes Pappus agitated for its official imposition in Strassburg, supported in the ensuing pamphlet war by the Swabians Andreas Osiander and Jakob Andrea; Sturm opposed them vigorously and vituperatively.

His ideal in education was "to direct the aspiration of the scholars toward God, to develop their intelligence, and to render them useful citizens by teaching them the skill to communicate their thoughts and sentiments with persuasive effect."

The Greek and Latin historians, philosophers and natural scientists appear on the reading lists only occasionally.

In addition to the Jean Sturm Gymnasium, Foyer Jean-Sturm, a modern student dormitory in Strasbourg, also bears his name.