In my short lecture I would like so sell you a few words about my experiences from experiments, in which I and my colleagues were interested in possibilities of the progress of lower secondary school pupils space-vision. Especially I would like to point out the method, were we use the theme of shadows. This theme was ordered into the didactical sequence of problems, some of them I will present there.
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This article proposes to bring some information about possible ways t develop the capacity for inductive thinking that are exemplified in the series of mathematics textbooks for children from 6th to 9th grades published in the Czech Republic.
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It is possible to form analogical problems concerning 2D objects in the space for 3D objects. As for students profitable is to learn how to formulate and solve this 3D problems, especially those ones whose solution requests non-trivial modification of the solution of the original problem.
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