During this highly interactive course, graduate students will investigate in depth, current research on effective teaching strategies in elementary mathematics focusing on student communication and its implications for classroom practice. This course will also provide opportunities for graduate students to deepen their understanding of the research literature through hands-on activities, student work samples, and classroom-researched videos. We will examine the research related to student discourse and communication in order to explore not only students' understanding of mathematical concepts, but also the use of mathematical language and the social interactions that take place between students. No experience in teaching mathematics or previous coursework related to mathematics is required.