Titlebook: Mathematics is Beautiful; Suggestions for peop Heinz Klaus Strick Book 20211st edition The Editor(s) (if applicable) and The Author(s), und

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The Pythagorean Theorem,Perhaps the most famous theorem of geometry bears the name of the Greek mathematician Pythagoras of Samos, who lived in the sixth century B.C.

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,Calculating with Square Numbers—Number Cycles,e these number cycles are discovered in the following, we will show some ideas for mental calculation of square numbers. The research on square number cycles can also be done with the help of pocket calculators or a spreadsheet, so if you are not interested in the tips for mental arithmetic, you can skip the first part of this article.

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Sum of Spots,ally, the dice are labeled in such a way that the sum of spots of opposite surfaces add up to 7, that is, 7 = 1 + 6 = 2 + 5 = 3 + 4. To make a dice, you can use different dice nets. The best known is the shape of a lying cross, but ten other shapes are also possible.

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Heinz Klaus StrickThe book offers a wealth of material and suggestions for research, experimentation and investigation from a wide range of mathematical fields.Almost no knowledge is required, only curiosity about own

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https://doi.org/10.1007/978-3-662-62689-4Elementary Mathematics; Geometry; Number Theory; Fractals; Combinatorics; Recreational Mathematics