一、为何要基于螺旋式上升的认知层次进行物质微粒观教学研究1.课程标准对于物质微粒观的相关要求新课程要求,化学学科教学应以提高学生的科学素养为宗旨,科学素养的核心组成部分是科学思维和科学观念.宋心琦教授亦表示:“中学化学教学能够使学生终身受益的不是化学专业知识,而是影响他们世界观、人生观和价值观的化学思想观念,学生正确的,哪怕只是定性地建立起基本的化学观念应 First, why do we need to study the teaching of material particles based on the cognitive level of spiraling? 1. The requirements of curriculum standards for the concept of material particles The new curriculum requires that chemistry teaching should be aimed at improving students’ scientific literacy and the core of scientific literacy Professor Song Xinqi also said: ”Chemistry teaching in secondary schools can not benefit students’ chemistry for a long time. Instead, they are chemistry ideas that affect their world outlook, outlook on life and values. Students are right, even if they are correct, Just qualitatively establish the basic chemical concept should be