The last time I was involved with helping to teach kids that age about France...I started by showing and handing out eclairs...and that got their attention. Then go about telling interesting facts, showing maps, and whatever else you've got on Paris geography. Napkins might be good to have on hand too.
Good Luck! Ask for me anytime. And please remember to click 'ACCEPT' if I answered your question...and/or...provide more details. Bonuses and feedback are also greatly appreciated.
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"always willing to answer, counsel, and help..."