Educational technology involves using technology tools like computers, mobile devices, and the internet to enhance the teaching and learning process. It prepares students for the 21st century by allowing them to develop skills like problem solving, critical thinking, collaboration, and learning how to effectively research and evaluate online resources. Incorporating technology into lessons makes education more relevant by showing how the material applies to real-world issues and problems. It also makes the learning process more engaging for today's students by utilizing multimedia and allowing independent exploration of topics.