Clivaz, StéphaneStéphaneClivazClerc-Georgy, AnneAnneClerc-Georgy2018-06-032018-06-032015-11http://hdl.handle.net/20.500.12162/1120-enCreating professional knowledge in practice: example of a swiss grade 3-4 lesson study math groupType de référence::Communications::Communication scientifique non publiée::Communication orale