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We measure the length: our length, length of the blocks, length the leap of frogs, the height, width and length of the cubes. We measure the time: we played game about days of the week, about day and night alteration, about the change of seasons. ������Ƶ and explain how to use calendar. We make sure that the hourglass and the wall clock show the same thing. We measure the weight: the weight of glowing cubes, metal balls, weight ourselves. We measure the internal temperature,

It's great fun to measure all the different things around us and, of course, ourselves.