Complicated problems of arithmetic, which so much harassed us in our boyhood, are easily solved by children seven and eight years old if they are put in the shape of interesting puzzles.
He notes that children can solve complex arithmetic problems if they are presented as engaging puzzles.
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More from Petr Alekseevich Kropotkin
The small bicycle workshops, with the hundreds of small improvements which they introduced, have been under our very eyes the primary cells out of which the great industry of the motor cars, and later on of the aeroplanes, has grown up.
At Oyonnax, a small town on the Ain, we have a big centre for the fabrication of combs, an industry more than 200 years old, which took a new development since the last war through the invention of celluloid.
That so small an area of land can produce so much wealth is nothing short of astonishing.
It is a fact that chemical manures, without organic manure, seldom prove to be sufficient.
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