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5. Check for missing parts.

Example: A puzzle is impossible to finish if one piece has gone missing.

Double Tap Century #Critical Thinking
21 st
Skills
Write the steps to identify a problem.

1.
2.

3.

4.

TYPES OF PROBLEMS

Some problems come with clear instructions and only one correct answer, while others are fuzzy,
open-ended, or involve lots of moving parts. By recognising the different types—such as well defined vs
ill defined, simple vs complex—we can choose the best way to tackle each one.

Simple Problems

A simple problem is one that you can understand, plan, and solve using a short, clear set of steps.

Key Characteristics

The key characteristics of simple problem are as follows:
Single goal: only one thing needs to be achieved.

Few variables: you change one or two factors at most.

Solution already known or easily discovered: the method is familiar, or you can find it with basic
research.
Short time frame: you can finish it quickly, often in one session or lesson.

Examples:

Maths homework: Find the area of a rectangle if the length is 8 cm and the width is 5 cm.
– one formula, one answer.

Replacing a flat bicycle tyre: Remove the wheel, switch the inner tube, pump it up.

Organising desk materials: Decide on a layout, label drawers, and put each item away.
Complex Problems

A complex problem involves many connected parts that influence one another, so the answer is not
obvious and may change over time.

#Problem-Solving 65