As discussed in a previous post, being in a position of competition motivates everyone to work harder to be obvious for the others and get a rank.
So what about the young learners?
as I observed from my experience with teaching young learners, I can tell that making competitions among the students motivates them the most to improve themselves and be real competitors.
One of the examples is making short-film produced by the students, the outcome was really amazing. the participants showed a very good command of the target language and presented things they weren’t taught in their lessons.
Mohsen's Blog 