Meier and Rishel explore the hows and whys of writing in mathematics. How to get started? How to grade assignments? How to introduce good writing into a maths course, and why you should care to do this? And most importantly, why is it so important to get students speaking and writing about mathematics anyway? This book should provide anybody involved in the teaching of mathematics with useful and constructive tools to examine the assignments they are using and the goals they hope to accomplish with them.