一、对数学公式推导的思维程序的指导。针对差生的抽象思维和独立解决问题的能力差的特点,在推导数学公式时,要有意铺设阶梯,让差生运用旧知由浅入深、由具体到抽象地进行推导。二、对运算思维程序的指导。差生四则混合运算时常常出现思维混乱,指导他们按这样的思 First, the mathematical formula for the derivation of thinking process guidance. In view of the characteristics of poor students' abilities of abstract thinking and independent ability to solve problems, when formulating mathematical formulas, they should deliberately lay down their steps so that poor students can use the old knowledge from simple to the deep and deduced from concrete to abstract. Second, the operational thinking process guidance. Poor students often mixed thinking four chaos, guiding them to think so