I have taught this way for years, from my middle school science classes to elementary, to my current adult Electrical classes. I am a huge fan of alternative summative assessments, than a typical exam format. So many 'kids' are test shy. How about a comic strip, short essay, power point with bullet points AND images, skit with a group, diorama......the list goes on. Putting the learning in their hands, including the students choice of demonstrating to me how much they have retained, is my strongest tool in empowering my students.