Lesson 01: Welcome: What Coding Is, and What You’ll Make

Coding is giving a computer instructions to follow. The computer follows them exactly as written, in order, one step at a time — it does not guess what you meant. Change the one thing the robot picks up, press Run, and watch the robot’s steps change.

This is a concept widget, not Python code. It shows the idea from Lesson 1. You will write real Python, starting with print, in Lesson 3.

Try this: Change the item to ball and press Run again — steps 2 and 3 change to the ball, while the other steps stay the same.

The instructions

1. Say: “Hello!”
2. Pick up the apple.
3. Put the apple in the box.
4. Say: “Done!”

What the robot does

Press Run to see the robot follow the instructions.