Classroom design for the 21st-century learning environment should accommodate a variety of learning skills and needs. The space should be large enough so it can be configured to accommodate a number of learning activities. This also includes furniture that provides flexibility and accommodates collaboration and interactive work among students and teachers. Flexibility is a recurring theme throughout the history of school design. In the framework of a 21st-century learner, flexibility in the learning environment is even more critical. Many space configurations are possible for learners. Some of the new configurations will have to provide for teacher-directed instruction, individual study, small groups, large groups, presentations, one-on-one instruction, as well as discussions among students and teachers. Classrooms with flexible space and furniture should enable learning to take place through all of these media.