In this Microsoft Teams 2026 tutorial, I walk you through Teams from the very first sign-in to actually using it day to day for work or school. I start at teams.microsoft.com, sign in with a work or school email, and then I switch over to the desktop app because it gives you a better user experience. From there, I show you how I navigate the left sidebar and what each main area is for, so you’re not clicking around confused. I go step by step through Chat (it’s basically like Slack or Google Chat), including how I continue an existing conversation, start a new chat, and invite people by copying a link. Then I show Meetings—how to start a call right from a chat, schedule a meeting, or join using a meeting ID. After that, I cover Communities and Channels so you can organize your team into groups (like a Sales team) and keep updates, posts, and files all in one place. I also show how I set up a recurring weekly meeting and how it shows up in the Calendar for everyone invited. Finally, I explain Activity alerts so you can quickly see mentions and jump straight to what needs your attention—everything under one roof, all connected.