The Study Of The Students’ View Of Chemical Elements Construction In Junior Middle School

This thesis studied the secondary element view basic connotation, in theconstruction of chemical element theory in junior high school, students should be ableto meet the following requirements: The first one is to understand the form of matterelement, to form the thinking of grasping the core in viewing things;The second is tounderstand the unity of the finite element and material diversity, know all theelements in the system of distribution have a relatively balance, so we need to respectnature and accord to the laws; The third is to understand the classification of thesubstance from the perspective of elements and form the view of ordering of thematerial world and the basic capability of classification; The fourth is to understandhow elements form the material on the basis of understanding of atomic structurefurther understand the unity of finiteness and diversity of ideas, forming the thoughtof innovation; The fifth is be able to analysis simple material which is expressed bychemical formula, and form the triple characterization ability of material macro microsymbols, preliminary forming the ideas of the\"symbolic\" to simplify; The sixth isto know physical transformation from the Angle of the elements in order to form theunderstanding of substance transformation element conservation; The seventh is toknow the periodic table, and try to know the changes and reasons in element periodic,preliminary forming the dialectical materialism ideas of the\"quantitative changecauses the qualitative change\".The establishment of the concept is the process of summarizing and refiningindividuals constantly, rather than being formed by infusion. Teachers should explorethe ideas and methods in every language point and realize the construction ofstudents’ view about the element view build by adopting effective teaching strategies.the author practices the view construction actively in teaching elements constructionand puts forward the teaching strategies of elements construction; The first one is scattering difficulties step by step; The second is leading the students to constructelement view initiatively from the starting point of thinking; The third is facing thecollision of students’ thinking from the view of elements history, producing the seedsof wisdom during the collision;The fourth is creating life situation actively, in orderto add impetus for the element construction; The fifth is carrying out all kind ofactivities, attaching to students’ emotional experience; The sixth is promoting theconcept of construction by analogy; The seventh is promoting the construction ofstudents view elements by building the knowledge network diagram.In addition, the thesis designs the teaching case of ideas construction basing on theprevious theoretical building, in order to provide references for middle schoolchemistry teachers.