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化学计算是初中学生必须掌握的化学基本技能之一。初中学生具备一定的化学计算能力,不仅能获得进一步学习和发展所必需的化学基础知识和基本技能,同时也是学生具备适应未来生存和发展所必备科学素养的需求。新课程理念下化学计算更多地要求学生从量的角度去了解化学变化的涵义,避免烦琐的数学计算,考查的化学计算技能有:(1)关于化学式的计算;(2)关于化学方程式的计算;(3)关于溶液的相关计算。厦门作为国家级课改实验区,已经进入
Chemical calculation is one of the basic chemistry skills that junior high school students must master. Junior high school students have a certain amount of chemistry calculation ability, not only can acquire the basic knowledge of chemistry and basic skills necessary for further study and development, but also have the necessary scientific literacy for students to adapt to the future survival and development. Under the new curriculum concept, chemistry calculations require students to understand the meaning of chemical change from the quantitative point of view, avoid cumbersome mathematical calculations, and the chemical calculation skills examined include: (1) Calculations on chemical formulas; (2) Chemical equations Calculations; (3) Related calculations for solutions. Xiamen has entered the experimental area of national curriculum reform and has entered