Axel Planté-Bordeneuve posts this episode of 1 Jour 1 Question, which is a 1 minute and 40 second video in French created for children that summarizes how the French language was "born," starting from Latin and evolving to what we now call French. This could be a great listening and history lesson.
Really great site from France: French as a Foreign Language (francais langue etrangere FLE) where teachers can find links to vocab, grammaar, verbs, icebreakers, etc. It's very interactive and informative. Amusez-vous!