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A new model to use when teaching Euclidean geometry

机译:教学欧几里得几何时要使用的新模型

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摘要

A geometric model is introduced which satisfies the Euclidean parallel postulate as well as all of Hilbert's axioms except the Side-Angle-Side axiom. This model provides several teaching opportunities in those Euclidean geometry classrooms that use the axiomatic method. In presenting these models at the same time as the more familiar ℝ2, ℝ3, and Poincaré models, students may be less tempted to assume that familiar constructs (lines, trianges, etc.) allow them to rely on familiar assumptions.
机译:引入了一个几何模型,该模型满足欧几里得平行假设以及希尔德伯特公理(除侧角-公理)之外的所有公理。该模型在使用公理方法的欧几里得几何教室中提供了一些教学机会。在与更熟悉的ℝ 2 ,ℝ 3 和Poincaré模型同时展示这些模型时,学生可能不太愿意假设那些熟悉的构造(线条,三角形等)允许他们依赖熟悉的假设。

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