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主要研究了化学式计算的学习条件及学习的心理机制,学生在学习有关化学式的计算中,数学计算技能是满足学习化学式计算要求的前提,但对于原子、分子组成,化学式表示物质组成等概念不清将严重影响有关化学式的计算。另外,对相对原子质量表示原子的质量不理解,而且教学中强调相对原子质量不表示原子的质量,使学生丧失了学习化学式计算的基础。
The main study of the chemical calculation of the learning conditions and the psychological mechanism of learning, students in the study of chemical formula calculation, mathematical calculation skills is to meet the learning chemistry requirements, but the concept of atomic, molecular composition, chemical composition of material that is not clear Will seriously affect the calculation of the chemical formula. In addition, the relative mass of atoms that the atomic mass does not understand, but teaching emphasis on atomic mass does not mean the quality of the atom, so that students lose the basis for learning chemistry formula.