Elle est en classe septième.
You can Say 7th Of May in French As "7 mai"
You can say "my class" in French by using the phrase "ma classe."
You say daily class schedule in french as horaire quotidien de la classe.
one seventh is "un septième" in French.
You start french class:"tu commences les cours de français"
un cours de sciences
Classe = Class You can also say Salle = Room
la classe
verre vert. French class
cours culinaire
Dans la classe.
Yes, in this case "seventh-grade class" should have a hyphen to show that the words "seventh" and "grade" are functioning as a single adjective modifying the noun "class."