Order Matters!
A sequence is doing steps in a specific order. In coding — and in life — order matters!
If you put on your shoes before your socks, that's a problem! Getting the sequence wrong means the program doesn't work right.
Step by Step
Computers follow instructions one at a time, from top to bottom. The first instruction runs first, then the second, and so on.
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Real-life sequence
Making a PB&J sandwich: Get bread → Open peanut butter → Spread it → Add jelly → Close sandwich. In the wrong order, it's a mess!
What Is a Bug?
When a program doesn't work, we look for mistakes called bugs. Fixing bugs is called debugging. Even professional programmers debug code every day!