Your starting point
Small lessons.
Useful understanding.
Choose a question that feels familiar. Each path has three lessons: read a short explanation, try the model, then check your reasoning.
3 short lessons · about 15–20 min
How websites work
Follow a website name to an address, understand saved copies, and find out who runs the servers.
Start this path 3 short lessons · about 15–20 minEveryday account security
Find out what a padlock proves, why a second factor helps, and which permissions a task needs.
Start this path 3 short lessons · about 15–20 minFiles, Wi-Fi & everyday IT
Recover a pretend deleted file, find a download bottleneck, and test a small office change.
Start this pathPick up where you left off.
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Prefer to explore freely? See the concept map, try individual scenarios, or browse the library.