Je suis entré à la leçon
To say 'went on in' in French you would say qui se passait dans.
patinage de leçon
apprendre une leçon
German is my favorite lesson L'allemand est ma leçon préférée
leçon 3 commence is the phrase in french language. The translation is lesson 3 starts.
une leçon and un cours
a sum is 'une somme' in French. If you mean sums in a maths lesson, it would be - les opérations.
"we went walking" = nous sommes allés marcher
to teach a lesson (in a classroom context): donner un cours to teach a lesson (you're angry at someone): donner une leçon (this is bound to be understood at least as a physical threat)
Lesson is "une leçon" (feminine noun) in French.
The French word for lesson is "leçon."
nous sommes sortis