Mathématices is an educational website offering mathematics and digital learning resources for pupils from CM2 through 3ème, as well as activities for younger learners. Its content is organised by school level and covers topics including arithmetic, decimals, geometry, equations, proportionality, and the theorems of Pythagoras and Thales. Students can use online exercises, tests, and interactive activities to practise skills, explore concepts, and prepare for progression between school years.

The site also introduces computing and programming through Scratch projects, Blockly Games, and information about the Castor Informatique contest, which features logic, algorithms, data representation, and digital applications. Additional resources include activities for the Course aux nombres mental-maths competition, downloadable programs, competency grids, and materials on using spreadsheets for calculations and data organisation. Geometry practice includes constructions of parallel and perpendicular lines, with some activities using GeoGebra. Mathématices serves as a broad learning resource for pupils and educators, combining guided practice, educational games, classroom-related materials, and links to digital learning tools.