Automatic item generation is like a magic machine that makes questions and problems for tests and quizzes. It's like when you play a game and the computer makes new levels for you to play.
The machine uses special computer programs to create questions and problems. First, it thinks about what kind of questions it needs to make. Then, it comes up with different ways to ask those questions.
The machine can also choose how hard the questions are going to be. Some will be easy, and some will be hard. That way, everyone who takes the test will have different questions, and it won't be too easy or too hard for anyone.
This machine is really helpful because it saves time for teachers and makes sure that the test questions are fair for everyone. It also helps improve the quality of the questions, so you can learn more from them.