Martin Vlietstra looks at our counting system and explains why we count in tens and not in twelves. Our counting system and the metric system are both decimal based (i.e. they use base 10). The entire metric system is based on tens and powers or ten, which fits in neatly with our counting system and makes calculations easy.
Continue reading “Why count in tens rather than twelves?”Tag: decimals
Decimal changeover lessons
Following on from last week’s informative article about the UK’s introduction of decimal currency, we look at some of the features contributing to that success and draw comparisons with the changeover to metric measures.
Continue reading “Decimal changeover lessons”Should we forget fractions and only use decimal?
I am motivated to write this article because, in the past, I have come across supporters of metrication, some of whom with teaching experience, who say that only decimals should be taught rather than both fractions and decimals in elementary mathematics in school.
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Metric Views 