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| Main findings Together with the design principles, the pilot work with existing software Scratch identified essential elements and should offer Scratcher designs or avoid. For example, in the pilot study, the second graders were provided Scratch find the blocks based on the text of the labels, which did not happen with children in kindergarten or first grade. Nevertheless, literacy remains a barrier to the development of competition with Scratch for most children between preschool and second grade. He systematically explores the effect of the numerical parameters in the move instructions based on concepts that are introduced 70-347 to more advanced grades: The Cartesian coordinate system, negative numbers and the relative size of numbers to 500 or more. Skills ranging from understanding the units of measurement, navigate through hundreds of blocks, up to predict the future outcome of a series of actions in the context of Scratch, they were outside the scope of both preschoolers and children first and second grades.
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