"Computational thinking" sounds technical, but it's a way of solving problems that anyone can learn, with or without a computer. It's usually described as four ideas.
1. Decomposition: break it into pieces
Large problems are easier when you split them into smaller ones. Planning a birthday party is overwhelming; "choose a date, make a guest list, order a cake, plan games" is manageable.
Try it: Ask your child to break down "make a sandwich" or "tidy my room" into small steps. How small can they go?
In coding: a game is built from a character, controls, a score, levels and so on, each made separately.
2. Pattern recognition: spot what repeats
Looking for similarities saves effort. If every morning follows the same steps, you can write them once.
Try it: Lay out a pattern with coloured blocks and ask what comes next. Then ask: "What's the rule?"
In coding: a loop is a pattern turned into code: instead of writing "step forward" ten times, you say "repeat 10 times."
3. Abstraction: ignore the details you don't need
An underground map shows stations and lines but not the exact shape of the streets. It leaves out what doesn't matter for the job.
Try it: Draw a simple map of your home for a visitor looking for the bathroom. What did you leave out?
In coding: a function hides the details. You tell it to print, and you don't need to know how the letters get onto the screen.
4. Algorithms: write clear steps
An algorithm is a precise set of steps to solve a problem, like a recipe. It has to be clear enough that someone (or something) with no common sense can follow it.
Try it: Write directions for a family member to get from the front door to the fridge, then follow them literally. See teaching algorithms with sandwiches.
In coding: a program is an algorithm in a language the computer understands.
Putting them together
Suppose your child wants to make a quiz.
- Decomposition: ask a question, check the answer, keep score, finish.
- Patterns: each question works the same way, so use a loop.
- Abstraction: a "question" is just text and a correct answer.
- Algorithm: the exact steps: show, read input, compare, add to score, repeat.
Why it's useful beyond coding
These habits help with schoolwork, planning and everyday decisions. Children who learn to break down problems and look for patterns often feel more confident facing something new.
Everyday ways to practise
- Cooking: follow and write recipes.
- Games: talk through strategies ("what's my plan?").
- Chores: build a checklist and look for the order that saves time.
- Puzzles: sudoku, mazes, jigsaws.
Where to learn more
Our free Thinking Like a Coder course teaches these ideas with no typing, and unplugged activities are a good place to begin at home.