It is therefore best to start by giving him the set where the difference is in two dimensions. As all the cylinders in the set have the same height...
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Language is related to the development of intelligence, but moral development is very important too. Intellectual education and moral and social...
The child is the creator of the man, certainly with regard to his adaptation to the environment.
Whilst all the organs of the body are constructed in the embryonic period, in the period after birth there is another embryonic period. It is during...
By exercising control of error when working with the apparatus, the child’s mind is held by the apparatus. If he replaces the cylinders incorrectly...
From a logical point of view, you should first present the set with the cylinders that vary in three dimensions. However, we do not do so for...
Now, somebody of about thirty years of age showed me that the rods can be carried with one hand at each end. Do not do this. Be careful how you...
The newborn must make a great effort to adapt to the external world. He is not yet conscious. Consider for a moment this sudden change of environment...