GCSE Computer Science: Syntax & Logic Error Worksheets (OCR/AQA)

Turn code correction into a hands-on challenge with these visual “Spot the Error” worksheets.

Debugging is often one of the hardest skills for students to master. This resource moves learners away from the screen and encourages them to read code critically.

Using a structured “Card Layout” (4 problems per page), students must identify the mistake in the Python code, highlight the specific line, and then explain why it is an error in the box below. This replicates the “identify and correct” style questions found in GCSE exams (OCR J277 / AQA 8525).

What’s Included?
5 Printable Worksheets: Containing 20 unique code snippets in total.

Varied Error Types:

• Syntax Errors: Missing colons, unclosed brackets, and case sensitivity issues.
• Logic Errors: Infinite loops, incorrect operators (= vs ==), and off-by-one errors.
• Runtime Errors: Variable name typos and type mismatches.
• Structured Layout: Each problem features a clear code box and a dedicated “Error =” writing space to keep student work neat.

Full Teacher Answer Key: Includes the corrected code and the exact explanation required.

How to Use:

1. Starter Activity: Print and cut into cards for a quick 5-minute bell work task.
2. Peer Assessment: Have students swap sheets and mark each other’s reasoning.
3. Revision: Use as a “low-stakes” test to check understanding of loops and if-statements.

Format:
High-quality A4 PDF.

Professional, clean design suitable for black-and-white printing.