If you are trying to integrate an international flair into your science and math curriculum, solar ovens are a great place to start. This 21st Century Math Project helps you get there. Students will design, build, test, and present a solar oven design with the objective of heating a hot dog the hottest. This is a hands-on STEM project for hands-on students. This works great when integrated scatterplots, best-fit functions, with energy. There are plenty of great opportunities to extend this learn