These dragons work as math machines as scholars multiply numbers using given functions, which remain the same for these: double it. Using an example as their guide, learners double three whole numbers, none of which exceed 11, for each dragon to get three products. Next, they complete 8 sentences, writing in the factor that must be doubled to get each product. There are examples here as well. Consider making this more engaging by bringing volunteer "dragons" up to become doubling machines, giving them numbers as they use mental math to multiply.