Critical Analysis & Evaluation
📋 What it is
Judge whether a measurement or answer is reasonable; find errors in someone's work.
🗣️ Coach says
Not every answer is sensible. A door "3 mm tall" or a person "weighing 2 g" signals a unit slip. Checking that an answer is REASONABLE — before trusting it — catches most measurement mistakes.
🧠 Memory hook
Ask "is this reasonable?" A 2 g person or a 3 mm door means a unit went wrong.
😂 Giggle
Why did the centimeter feel inferior?
Because the meter always looked down on it from 100 times higher!
😲 Whoa!
Nurses double-check every medicine dose against what's "reasonable" for a patient's size — a decimal slip could be dangerous.
✅ Quick check: A student says a school bus is "12 cm long". What's wrong?
Say your answer out loud first — then reveal.
Wrong unit — a bus is about 12 metres, not centimetres; the answer isn't reasonable.
Sanity-checking against real sizes catches unit errors instantly.
🧪 Try it! (2 minutes)
Spot the silly measurement: "my pencil is 20 metres long". Fix the unit.