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互补思想源于数学中内角互补,集合中子集和补集互补启发而得出的.把其运用到化学教学之中,让学生体会到知识间互补关系,巧借互补简化学习过程,提高学生思维水平培养思维能力意义非凡.下面结合自己的教学体会谈谈看法.一、中学化学中互补点小结(1)元素金属性与非金属性:二者互补关系,且在元素周期表的递变及元素性质的表现上互补,化合价的变化,单质颜色的变化,金属与水或者酸作用制氢,非金属则跟氢的结合等方
The idea of complementarity is derived from the complementarity of interior angles in mathematics, the collection of neutrons and complementarity complementing inspiration, which is applied to chemistry teaching so that students can understand the complementary relationship between knowledge, simplify the learning process by means of complementarity, and improve students’ First, the chemistry of secondary schools Summary of points of complementarity (1) elemental and non-metallic elements of the metal: the relationship between the two complementary, and in the periodic table of the changes And the elemental nature of the complementary performance, the valence change, the change of elemental color, metal and water or acid hydrogen, non-metallic with the combination of hydrogen and other parties