Data Collection & Organization
📋 What it is
Data is gathered by counting or measuring, then organised into tables or tallies.
🗣️ Coach says
Every statistic starts with collecting data — carefully. A tally chart keeps count as you go; a table organises it so patterns show. Messy collection means messy conclusions, so be systematic from the start.
🧠 Memory hook
Collect first, organise second. A tally (llll strikethrough) keeps count without losing track.
😂 Giggle
Why did the coin go to therapy?
It couldn't stop flipping between two sides of every issue!
😲 Whoa!
A "survey" of the whole country — a census — has been run for thousands of years; ancient Rome counted its citizens every five years.
✅ Quick check: You're counting cars by colour as they pass. What tool keeps an accurate running count?
Say your answer out loud first — then reveal.
A tally chart — one mark per car, grouped in fives.
Tallies let you count live without losing your place.
🧪 Try it! (2 minutes)
Tally the colours of 20 items in a drawer, grouping marks in fives. Which colour wins?