Python Parsons Problems - 5 Logic Puzzles (GCSE Computer Science OCR/AQA)

**Enhance your Python programming toolkit with this “Parsons Problems” activity pack.
**
Designed for both experienced Computer Science teachers and non-specialists, this resource shifts student focus from syntax frustration to pure computational thinking. It offers a structured, evidence-based approach to teaching algorithm design that fits perfectly into any scheme of work.

What is a Parsons Problem? A Parsons Problem is a scaffolded learning activity where students are given all the correct lines of code required to solve a problem, but in a jumbled order. Instead of writing code from scratch, the student’s task is to:

Sequence the Logic: Arrange the lines in the correct execution order.

Master Syntax: Apply the correct indentation (crucial for Python).

What’s Included in this Pack? This 7-page PDF contains 5 progressive challenges that map directly to OCR J277 and AQA 8525 specifications:

Problem 1: FizzBuzz Counter (Modulus Operator %, if/elif/else, for loops)
Problem 2: Password Strength Check (Boolean Logic, String Methods, Validation)
Problem 3: Top Score Finder (Arrays/Lists, Standard Algorithms - Finding Max)
Problem 4: Vowel Counter (String Traversal, Count Occurrences Algorithm)
Problem 5: Menu Calculator (User Input, Arithmetic Operations, Control Flow)

**Why use this resource?
**

• Reduces Cognitive Load: By removing the need to type and debug syntax errors, students can focus entirely on the logic and flow of the program.

• Versatile Delivery: Ideal for use as a starter activity to check prior knowledge, a focused homework task, or an unplugged lesson when IT facilities are unavailable.

• Differentiation: Detailed enough to challenge high achievers on indentation rules, yet accessible enough to support students who find “blank page” coding intimidating.

• Teacher Answer Key: Includes full, correctly indented code solutions for quick and confident marking.

Format:

• High-quality printable PDF (A4).
• Uses clear “Courier” font for code snippets to model best practice.