Fractions · pie charts
Where does your day go?
🎓 School maths · Years 5–6Fractions & pie charts — Show parts of a whole (a day) as fractions/percentages on a pie chart.Maths by year →
The Case. A day has 24 hours. How many do you spend sleeping, at school, playing or on a screen? Let's slice up your day and see.
Your tools. matplotlib turns your hours into a pie — each slice is a part of your whole day.
Investigate. Press Run. Each slice shows what fraction of your day something takes. Make the hours add up to 24!
- Which slice is biggest? Is that a surprise?
- A pie chart is fractions and percentages you can see.
your_code.py
Starting Python…
The Reveal
Starting Python… (first time only — a few seconds)
🗒️ Detective's notes
Bundles your findings, chart and code into one PDF you can keep, print or hand in.
🧩 How this code works
The tools it uses
- Matplotlib — your crayon box — it turns numbers into charts and pictures.
What this one does
- • It draws a pie chart — great for parts of a whole.
How to read it, top to bottom
- 1. Import — bring in the tools (listed above).
- 2. The data — the lists and numbers near the top. These are the bits you change.
- 3. The work — a little maths, or a loop that repeats a step.
- 4. Show it —
print(...)writes words;plt.show()draws the picture.
Use it for your own problems
- Change the numbers at the top and press Run — nothing breaks, so experiment!
- Ask your own version of the question — swap in your family, your scores, your week.
- The same tools work on any numbers — that's the superpower you're learning.
Need a hint?
Each slice = its hours ÷ 24. If the hours add up to 24, the whole pie is your whole day.