Занимательная геометрия на вольном воздухе и дома

'Kazalosʹ by, ni odnomu uchiteli͡u ne pod silu obʺi͡asnitʹ shkolʹniku, chto geometrii͡a mozhet bytʹ interesnoĭ! No s pomoshchʹi͡u knigi znamenitogo I͡Akova Isidorovicha Perelʹmana, ėto stanovitsi͡a vozmozhnym, vedʹ vse ego zadachi napravleny na to, chtoby i͡unyĭ geniĭ nauchilsi͡a zamechatʹ geometricheskie zakony v okruzhai͡ushchem mire i polʹzovatʹsi͡a priobretennymi znanii͡ami na praktike.Deĭstvitelʹno li muraveĭ silʹnee cheloveka i chto idet bystree - golova ili nogi? Kak nauchitʹsi͡a chertitʹ bez t͡sirkuli͡a i izmeri͡atʹ dlinu bez lineĭki? Kak opredelitʹ razmer obʺekta po kompasu i vychislitʹ rasstoi͡anie bez priborov? Pochemu pylʹ i oblaka letai͡ut v vozdukhe i kakai͡a raznit͡sa mezhdu gorizontami na Zemle i na Lune?Originalʹnye zadachi! Interesnye primery! Neozhidannye reshenii͡a! Kniga pomozhet razvitʹ nabli͡udatelʹnostʹ, prostranstvennoe i "geometricheskoe" voobrazhenie i podarit massu polozhitelʹnykh ėmot͡siĭ li͡ubomu chitateli͡u, dazhe tomu, kto terpetʹ ne mozhet geometrii͡u!'

'It would seem that no one teacher can't explain to the student that the geometry can be interesting! But with the help of the book by the famous Yakov Perelman, it becomes possible, after all, his task is directed to the young genius learned to notice the geometrical laws in the world and to use acquired knowledge in practice.Whether the ant is stronger than a man and that is faster than the head or feet? How to learn to draw without a compass and measure the length without a ruler? How to determine the size of the object by the compass and calculate distance without instruments? Why dust and clouds are flying in the air and what is the difference between the horizons on the Earth and on the moon?Original problems! Interesting examples! Unexpected solutions! The book helps to develop observation, spatial and geometric imagination and give you lots of positive emotions to any reader, even someone who hates geometry!'