七年级是学生中学学习的起始阶段,是经历从小学的算术向代数过渡的关键时刻,是从对数的思考向对符号的思考的转变,是学生数学学习过程中极为重要的转变阶段,是思维层次从特殊到一般、具体到抽象的飞跃,因此,学生起始阶段的学习效应显得尤为重要.从小学步入初中阶段,学生所认识的数从自然 The seventh grade is the initial stage of secondary school learning, is the transition from arithmetic to algebra at primary school, from the logarithm of the thinking to the symbol of thinking is a crucial stage in the process of mathematical learning, Is the level of thinking from the special to the general, the specific to the abstract leap, therefore, the learning effect of the initial stage of the students is particularly important from the elementary school into the junior high school stage, the number of students from natural