The document discusses three dimensions of creating a positive learning environment: psychological, physical, and social. The psychological environment involves setting a positive tone and using seven qualities of effective teaching to build trust and confidence. The physical environment should be comfortable and conducive to learning, considering factors like room arrangement, seating, lighting, temperature, and technology. The social environment aims to value all learners by recognizing differences and avoiding discrimination. Both intentional and unintentional discrimination should be addressed. The class should assume diverse backgrounds and discuss differences respectfully without singling students out. The document also notes two factors related to different teaching approaches: technology and class size. Large and small classes each have pros and cons, so