Free-form entry eg: '125000km', '1.5 million inches', '$67bn', '45000000 AUD', 100years', '123456789', '1 trillion', '1.5e6', '25 million kg'
Two students’ lives were put at risk when they were accidentally given a dose of caffeine that was 100 times greater than it should have been. “… the calculation had been done on a mobile phone, the decimal point being put in the wrong place. ” Getting the numbers right can be a matter of life and death.
The Greek Theatre in the Sicilian town of Taormina could, so they say, accommodate 5000 theatre-goers. Could this be true? Let’s do some rough and ready calculations …
This thought-provoking blog post accurately describes one of the most important reasons for mathematical (and other) education: for the habits of thought and not always only for the content.
Numeracy, and a numerate approach to understanding the world, becomes a habit also. Keep asking: “is that a big number?”
We like the attitude at cockeyed.com.
Take a bunch of everyday stuff (not just clothes) and weigh them. Why? Just to see how much they weigh! (and along the way maybe help internalise a sense of relative weights).
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