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好的开始是成功的一半,初中数学几何入门教学是学好几何的关键。严谨性是数学学科的基本特点之一,它要求数学结论的叙述必须精炼、准确,数学结论的推证过程中,步步要有根据。“几何说理计算”是初学几何者第一次遭遇的论证,也是今后证明题的前奏。它也讲究逻辑的条理性,严密性。对刚学习几何的七年级学生来说,严谨是一个严峻的挑战,是几何入门的绊脚石。学生常犯的错误主要有以下几点:只见数字不见理由,思维混乱导致的条理混乱,前因不搭后果,自行添加题目没有的已知条件,看图形乱下结
Good start is half the success, junior high school mathematics geometry is the key to learning geometry geometry. Rigidity is one of the basic characteristics of mathematics, which requires the description of mathematical conclusions must be refined and accurate, the mathematical conclusion of the process of deduction, step by step must be based on. “Geometric Reasoning ” is the first encountered by beginner geometry argument, but also a prelude to proof of the future. It also stresses logical and rigorous logic. For seventh-graders just learning geometry, rigor is a serious challenge and a stumbling block to geometry. Students often make the mistakes are the following: I saw no reason for the figures, chaos caused by disorganized thinking, the antecedents do not take the consequences, add the title of their own known conditions, to see the graphic chaos