Is it easier to calculate sums than subtractions? Why?
It may be that we memorize addition facts and need to apply an algorithm for subtractions. By the same token it seems that multipplications are easier than divisions.
You can read lesson plans for children in:
The Math Lesson.
Children start counting. Could they start subtracting?
It may be natural, whatever that means, to count than to subtract. Could we start by asking small children to take away, before we worked on counting?
I suspect that society chose sums over subtractions and adults taught children that way. It could have been the other way around. If the child has a few things, adding seems natural, but if she already has more than she uses, she could see subtraction as relevant. More and less are concepts we learn from a young age. Which is more "natural", whatever that means?
It may be that we memorize addition facts and need to apply an algorithm for subtractions. By the same token it seems that multipplications are easier than divisions.
You can read lesson plans for children in:
The Math Lesson.
Children start counting. Could they start subtracting?
It may be natural, whatever that means, to count than to subtract. Could we start by asking small children to take away, before we worked on counting?
I suspect that society chose sums over subtractions and adults taught children that way. It could have been the other way around. If the child has a few things, adding seems natural, but if she already has more than she uses, she could see subtraction as relevant. More and less are concepts we learn from a young age. Which is more "natural", whatever that means?
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