Run it!

Start here

• A lesson is a list of short steps. Press Continue (the arrow at the bottom) for the next one.
• After the steps come tasks: code you change and run.
• Today you type very little. You change one small thing at a time.

The buttons

• Run ▶ runs the code. What it prints appears in the dark box under it.
• Check answer tests your code. Green means correct, and you win coins.
• The lightbulb gives a hint when you are stuck.
• Reset brings the starting code back.

print("I am an example. Press the play button to run me.")

When something goes wrong

• If the code has a mistake, Python stops and shows red text.
• Under the red text, a card explains the error in English and Chinese and tells you which line to look at.
• Mistakes are normal. Read the card, fix one thing, and run again.

When a program waits for you

• Some programs ask a question with input().
• Then a highlighted box appears: type here, then press Enter.
• Click the box, type your answer and press Enter. The program continues.

name = input("What is your name? ")
print("Nice to meet you, " + name)

Now you try

• Three small tasks. Change the code, press Run, then Check answer.