Educational technology is the study and ethical practice of facilitating learning through the use of technology resources and processes. It draws from several fields including instructional design, media psychology, and communication theory. There are three main theoretical approaches in educational technology: behaviorism which focuses on observable behaviors and reinforcement, cognitivism which examines mental processes like memory and learning, and constructivism in which learners actively construct their own understanding. Benefits of educational technology include increased access to materials, student motivation through feedback, and enabling wider participation in learning. Critics argue that proper training and access are sometimes lacking and some implementations can be time consuming.