How-toStudentsTeachers

Run pseudocode or Python in the Playground

Write Cambridge pseudocode or Python, run it with inputs, see a trace table, and get examiner-style error messages.

6 steps about 4 min Students, Teachers

Step 1: Choose the language
Where: Playground → Pseudocode | Python
Pseudocode follows the Cambridge guide strictly (every variable DECLAREd, typed, set before use). Python is real Python 3 running in your browser — the first load takes a few seconds.
Open this screen
Step 2: Start from an example
Where: Examples
Search the library or filter by level and category; loading one fills the editor. Reset puts it back as it was.
Step 3: Give it inputs
Where: “INPUT values (one per line, used in order)”
Each INPUT (or input()) takes the next line.
Step 4: Run
Where: Run (⌘/Ctrl + Enter)
Output, Trace table and Identifiers tabs show what happened. In the trace table, Test me — fill the table myself lets you practise and Mark my table.
Step 5: Fix errors
Where: Error box → Ask Z to fix it
Errors give the line and what the examiner would say; amber notes are things that run but would lose marks. Ask Z explains the fix.
Step 6: Share or translate
Where: Address bar / Translate
The page address holds the example you loaded — copy it to share. Translate turns pseudocode into Python, VB.NET or Java.

Did this guide help?

Steps