Hey there, @habran.alexandre !
I would suggest taking a look at the international materials we offer through our CS Fundamentals course. Both Courses 1-4 and the Accelerated Course have been translated into French, so that would be a great way to introduce CS to your students. While Courses 1-4 and the Accelerated Course cover the same concepts, the Accelerated Course is designed with older students in mind. That might be your best bet.
If you're looking for more challenging content, you might be interested in CS Discoveries and CS Principles, but be aware that these courses are only available in English.
Hope that helps!
Any other suggestions from teachers, especially those teaching internationally?