The document discusses how computers can be used as powerful tools to enhance learning by providing access to information, fostering creative knowledge building, and enhancing communication. It notes that without computers, learners would have to take on tedious low-level tasks, but computers allow teachers and students to focus on higher-level cognitive tasks instead. The document concludes that based on learning theories, teachers can use computers as an information tool, a communication tool, a co-constructive tool, and a situating tool.