Your first chart
Whose tower is tallest?
🎓 School maths · Years 2–3Statistics — Read and compare a bar chart; find the tallest bar.Maths by year →
The Case. At home everyone is a different height — Dad can reach the top shelf, but the baby needs a booster seat at dinner. Who is the tallest? Instead of standing everyone against the wall, let's draw a chart so we can see it all at once — just like the growth charts at the doctor's.
Your tools. matplotlib is your crayon box — it turns numbers into a chart.
Investigate. Press Run. Each bar is a person; the tallest bar is the tallest person.
- Change the names and heights to your family.
- Add your grandma to the lists!
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 bar chart — great for comparing amounts.
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?
Every name needs one height. Keep the two lists the same length.