A Research On The Professional Development Of Primary Science Teachers Based On PCK Theory

With the wave of new curriculum reform,teachers need to improve their professionalization level.Educational experts at home and abroad have found that PCK is the core knowledge of teachers' knowledge.Therefore,the key to promote teachers' professional development is to promote the development of PCK.The study of teacher PCK will help to investigate the diversity of teachers' professional skills development,and help to understand the combination of teachers' professional knowledge and professional practice,so as to test the establishment of professional ideals of scientific ideas under the background of teachers' new curriculum reform and to promote the formation of teachers' professional self.This research takes the primary science teaching video "mirror" as the carrier,and applies the PCK evaluation tool developed by Erickson college in the United States to investigate and analyze the PCK level of primary school science teachers,trying to solve two problems: In the teaching of the specific subject content of primary science subject,what is the current situation of teachers' PCK? what kind of approach does primary school science teacher use to form and develop PCK?The evaluation results show that PCK of primary school science teachers is at a limited stage of understanding and application,and there is still much room for improvement.The horizontal comparison of the 3 elements of the primary school science teacher PCK finds that the level of students' knowledge is the highest,the level of teaching strategy knowledge is the second,and the level of curriculum knowledge is the lowest.SPSS21.0 software was used to analyze the results of the survey.It was found that the educational background and major of primary school teachers had a significant impact on the level of PCK,and sex had a certain influence on the level of PCK.In view of this,the following suggestions are made to the development of PCK for primary school science teachers: first,improve the entrance threshold of teachers in the light of local conditions;second,pay attention to the needs of the students,improve the knowledge of students;third,strengthen professional training,provide a platform for further study;fourth,professional training and discussion should be different from people and take the remedy to the case.