This is a big week for our teachers in Mali. All this week, 36 of our teachers will attend a teacher training with professional experts. They'll spend 5 days learning the best teaching techniques, how to incorporate active learning into their classrooms, and how to manage their huge classes (sometimes as many as 100 students in a class!). For those of us here in the states, this might sound humdrum. But for teachers in Mali, it is a big deal....