基于微粒观指导的“盐溶液性质”高三复习教学

Review Teaching of "the Property of Salt Solution" Based on Particle View

围绕对盐溶液性质的认识,通过实验探究、小组合作学习,建立用微粒观认识物质性质的思维方法,将分散在元素化合物、电解质溶液等部分的盐溶液性质进行整合,建立盐溶液性质与化学平衡移动原理、氧化还原原理、络合反应原理和电化学反应原理的联系.在完善核心知识立体构建的同时,聚焦微粒观的指导作用,基于盐溶液中微粒存在、盐溶液中微粒与外加试剂微粒间的相互作用认识盐溶液性质,达到用微观、动态、平衡的视角进行较高水平思维的目的.阐述基于微粒观指导下盐溶液性质认识的教学实践研究.

Centered around understanding of the salt solution properties,through experimental inquiry and group cooperative learning,this paper established the thinking method of understanding material property with particle view,integrated the properties of salt solution dispersed in element compounds and electrolyte solutions,and established the relationship between salt solution properties and chemical equilibrium movement principle,redox principle,complex reaction principle and electrochemical reaction principle.While perfecting the core knowledge construction,focusing on the view of particle,the essence of salt solution could be understood well based on the existence of particle in salt solution and its interaction with particle of added reagents.In this way,students could have a relatively high level of perspective,via combining microcosmic,dynamic and balance,to achieve utmost understanding of the whole concept.The main point was exploring the nature of salt solution guided by the view of particle.