# Demonstration: The Same Word, Two Different Destinations ## OBSERVE Starting from `/home/student`, run `cd project` — you land at `/home/student/project`. ## HYPOTHESIS Now, from `/home/student/project`, what do you predict `cd project` will do this time? ## INSPECT ``` $ pwd /home/student/project $ cd project bash: cd: project: No such file or directory ``` It fails — there's no `project` directory INSIDE `project` (unless you happened to create one). The exact same relative path meant something completely different depending on where you stood. ## CHANGE From `/home/student/project`, run `cd ../project` instead — this correctly goes back up one level, then into `project` again, landing you right back where you started. ## VERIFY `pwd` after each `cd` to confirm exactly where you ended up — this habit (verify your location before assuming it) prevents a huge share of "why did my command run somewhere unexpected" confusion later. ## Instructor Notes **Demo goal:** Make "relative paths depend on where you are" concrete and slightly surprising, rather than an abstract rule to memorize. **Approximate timing:** 8 minutes live. **Common mistake to watch for:** students assume a relative path always means the SAME thing once they've used it once — reinforce that it's re-evaluated fresh every time, from wherever they currently are.