This chapter describes key features of teacher-student and peer relationships, and ways to support positive social interactions through classroom management, curriculum, and instruction. It is argued that caring relationships and classroom communities create social contexts that prepare the way for successful use of the motivational strategies discussed in the rest of the book. The chapter begins with a discussion of theoretical perspectives on teacher-student relationships, including attachment theory, self-determination theory, and social support theories. Specific strategies for developing positive teacher-student relationships are provided. Next, perspectives on peer relationships are presented, with ideas for promoting positive peer interactions through classroom management practices and instructional strategies such as peer-assisted learning.