Length & Distance
📋 What it is
Length is measured in units (mm, cm, m, km); bigger units mean fewer of them for the same distance.
🗣️ Coach says
Measuring length means counting how many units fit. The unit matters: a hallway is a few metres OR a few hundred centimetres — same distance, different count. Pick a unit that fits the object.
🧠 Memory hook
Same distance, different unit = different number. 1 m = 100 cm. Big unit → smaller number.
😂 Giggle
Why did the ruler feel so important?
Because it was the measure of all things!
😲 Whoa!
The metre was originally defined as one ten-millionth of the distance from the equator to the North Pole.
✅ Quick check: How many centimetres are in 2 metres?
Say your answer out loud first — then reveal.
200 cm — each metre is 100 cm.
Converting to a smaller unit multiplies the count (× 100).
🧪 Try it! (2 minutes)
Measure your desk in centimetres, then in hand-spans. Same desk, two different numbers.