Materials development is concerned with all the resources available for helping the teaching and learning process. These resources include professionally printed products such as textbooks, activity books & teacher guides as well as CD-ROM, DVD, and online computer resources. Resources also include those materials created by teachers & students. In this course, we review various re- source options, discuss their advantages & disadvantages, and outline ways in which teachers can both use and create effective and efficient materials to help in the teaching and learning process.