A Research Oil Biological Former Concept Of Junior High School Students

Before formal Seararing, In SSwdesits，imirad is not; a blank, butf^ere are all kirads@f former concept.Former concept Bias a dyalroE? to stwdemts， coneept Bearningdf?◎rasisteffal: mfith thescierstifie concept: welS promote D@arning? if not eonsistent wHlbinder the c?nce|3t?f acqyisitiona￥isible, for teacherpreparation, understasid the student have former concept asmdispesisab9@,Therefore，isivestigat言?n th? first new isiology concept inconcept feaehimg sm?@tiiSy ofefore, it is very meaningful.Thissfydy used Eif@ralur@me4h?d and qyestionsiaire method(diagnostic test and determirafstic c??ff【ei?rit method)I§iv@sl:igatiore before formal learmieig biology lay dividng groupsfor compulsory educations schools are seventh gradebio9ogy (version1Jurae2012)"4h? days of the s?c@nd3threeyinats included11the ynderstanding of the目mp?r4asit◎◎nc?pts?◎f this study was to f@ll@w the prisicipS? of convenientstratified sampiing envestigafion, city, coyeity and tcswnship-l?v?leach ch?ose a§ravestigat§on, this study chose Jiefang road road school of linfen, pingyao experimental middle school andanze JiShi middle school.In the school each choose a regularclass four, grade seven.Study found that students in junior high school biology "cellis the basic unit of life activity","how cells constitute biology","what are the green plants in the biosphere","angiosperm life","green plants to participate in the biosphere cycle","green plantis a maker of organic matter in the biosphere","green plants andbiosphere carbon-oxygen balance" in the part such as concept,before there were different degrees of typical collected67higher before the concept of ownership.Dividng groups havebiology concept of "lack of knowledge" percentage, the largest andmost belong to the concept of shell.Concept before selecting three schools, the concept ofownership are more than80%had45, mainly concentrated in the"life of angiosperms","green plants to participate in thebiosphere cycle","green plant photosynthesis" and "green plantrespiration".Compare different levels school, junior middle school studentshave different genders, as a percentage of the former concept resultsshow that the township county, city middle school students andmiddle school students lack knowledge rate and the concept of errorrate before there are significant differences, and municipal countymiddle school high school students do not exist significantdifferences.The first former concept does not exist significantdifferences in the male and female, student of biology concepts gobeyondthe limitations of the gender. Enlightenment to the teaching of this study was: the teacherwants to strengthen the consciousness of former concept, strengthentheoretical study before the concept;Correct understanding ofstudents exist before the concept, as teaching resources used inclassroom teaching;Choose the appropriate method change student’sformer concept.