Create a story
A story is a type of post that will exist for 24 hours then disappear.
Stories can be used to promote a regular post, to remind your audience of an event (for example: "We're meeting tonight at 7 PM"), for breaking news, for information you don't want to post permanently to your timeline, to interact with your followers etc.
You will find stories at the top of the Instagram app when you open it.
▶️ Watch the tutorial to learn how to create a story (2 minutes): https://youtu.be/uQk6AVo53_Q