1. Twitter is a social media platform that allows users to share short messages called tweets. It encourages information sharing and networking as more people contribute to the content.
2. To create an account, users visit the Twitter website and fill out a sign up form with their information. They can then follow other accounts and have their tweets visible on their followers' timelines.
3. In education, Twitter can be used to facilitate classroom discussions, collaboration on projects, and allow students to express themselves. Hashtags and tagging other users helps students interact on a class Twitter page created for an online ocean quiz game.