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数学中的符号意识,是指有意识地运用适当的符号描述数学研究对象,以便于将数学的相关思想、方法、逻辑关联以及方法更加精确、鲜明地表达出来。数学学习呼唤学生建立相应的符号模式,并运用符号模式解决现实生活中的问题。一、激活内在意识,夯实符号意识的基础师:大家都玩过扑克牌,同一种花色有多少张扑克?生:好像是13张。师:晃动手中的牌,任取三张演算出24。生抽出2、6、8。生:(6-2)×8=24。生:再次抽,抽出了K、A、2,一脸茫然。师:出现
Symbolic awareness in mathematics refers to the conscious use of appropriate symbols to describe mathematical research objects in order to more accurately and vividly express the relevant ideas, methods, logical connections and methods in mathematics. Mathematical learning calls for students to establish the corresponding symbolic patterns and use symbolic patterns to solve real-life problems. First, to activate the internal consciousness, to reinforce the basic sense of symbol division: We all played cards, the same number of poker colors? Health: It seems that 13. Division: shaking hands in the card, take three calculations 24. Students take 2,6,8. Students: (6-2) × 8 = 24. Students: pumping again, out of K, A, 2, a look blank. Teacher: appeared