Printable World Flags - for individual country unit studies. Focus on one country each month/couple weeks and study geography, culture, art, history, notable people, food, etc. make some traditional food with the kids to try
The Teenage Brain - Teens don’t have the self control and emotional processing that adults have. What parents have known forever, science has now proven. The frontal lobe in their brains will not be fully developed until they are 25 years old. Parenting teens is tough... I think it helps a little to understand what's actually happening in their brains.