Research On The Teaching Mode Of "Four Representation" Based On Handheld Technology

Since the social development has entered the information age,chemistry teaching has also kept pace with the trend of The Times.The state attaches great importance to the transformation of students’ learning methods and the application of modern teaching methods.Handheld technology,as a means of digital experiment,is widely used in the exploration and development of middle school chemistry courses because of its portability,real-time,accuracy,intuitionistic and comprehensive characteristics.Handheld technology plays an important role in changing teachers’ outdated educational concepts,exploring students’ exploration and practice abilities,and improving students’ abilities and qualities.The main contents of this paper can be summarized as follows:analyze the typical cases of teaching with handheld technology,interview and investigate some high school teachers and students,construct a new framework of four-fold representational teaching mode.The innovation of the paper is that to construct the basic framework of quad characterization of teaching mode,the design,validation,and forecast the analysis of three basic teaching link,the three teaching links overall constitute a complete process of scientific inquiry.In terms of four heavy representation ability,students predict links and verification are focused on the macro representation ability and symbolic representation ability,including verification using handheld technology experimental method is introduced into the curve representation,analysis is based on the above characterization of microscopic analysis to promote the students’ ability of microscopic characterization,the four characterization of mutual penetration,contact each other,work together to promote students’ ability and improve quality.Finally,through the comparative analysis of exam results,combined with literature research and questionnaire analysis,it is believed that the teaching model can play a positive role in improving students’ results,and carries on the research prospect.