





In case of difficulty the teacher shows it as by method of tests it is possible to perform a task.
Takes a short stick in the beginning and tries to push out it a parcel.
Thus he speaks: You see, the stick does not reach a parcel.
Then takes a long stick and pushes out a parcel, exclaiming: Got!
Thus pays attention of children to properties of the premetatool: If one stick not to get, it is necessary to look for another, to try other stick.
After that the teacher allows the child to play with the machine.
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