论文部分内容阅读
从上世纪七十年代末小学阶段引入解方程以来,解方程教学大致可以分为三个阶段。第一阶段是用四则运算关系解方程,就是熟练运用四则运算中各部分之间的关系去解方程。第二阶段是2001版课标中提倡的用等式性质解方程。第三阶段是2011版《课程标准》中明确“用等式的性质解简单的方程”的要求。这个过程体现了从算术思维到代数思维的转变。让学生经历从用四则运算关系解方程到用等式性质解方
Since the introduction of the solution equation at the elementary school in the late seventies of the last century, solution to equation teaching can be roughly divided into three stages. The first stage is to solve the equation with four arithmetic relationships, that is, to master the relationship between the various parts of the four arithmetic operations. The second stage is the 2001 version of the curriculum standard advocated by equation nature solution equation. The third stage is the requirement of the 2011 “Curriculum Standard” that “the simple equation is solved by the nature of the equation.” This process reflects the shift from arithmetic thinking to algebraic thinking. Let students experience solving equations from the four arithmetic relationships to equations of equality