| In recent years,big data technology has developed rapidly,big data platform has been gradually established,the integration of big data technology and education to achieve precision teaching has become a new trend of education reform.Precision teaching based on big data can provide personalized and precise services for learners,help learners keep abreast of their own situation,and make learning clearer and more efficient.Big data technology can also fully mine teaching data to support teachers’ scientific decision-making,improve classroom efficiency,enrich the classroom organizational form,improve after-school tutoring effect,and help realize precision teaching.This study combs the current research on precision teaching based on big data,and has mainly found the following phenomena: In foreign countries,the concept of precision teaching has gradually developed after being proposed by Ogden Lindsley,mainly continuing and supplementing Lindsley’s research in theoretical research.In practical research,researchers have conducted teaching practices to verify the effectiveness of precision teaching,but there is less practical research on precision teaching in high school.Multiple researchers in China have conducted theoretical and practical research on precision teaching based on big data,enriching the theory of precision teaching and proving that precision teaching based on big data can improve teaching efficiency.But the current precision teaching model based on big data is often complicated and may violate the teaching practice,and often requires the use of terminal devices such as student tablets to collect data,while the advantages and disadvantages of using student tablets in schools remain to be studied.Based on the above analysis,this study takes D Middle School in Sichuan Province as an example,through questionnaire survey and interview,the present situation of precision teaching of biology in high school based on big data is investigated.By analyzing the current situation and combining with the latest literature analysis,the paper designs a more practical precision teaching model of high school biology based on answer sheet and big data platform,and builds targeted teaching cases accordingly.The teaching experiment was carried out in the senior one of C Middle School in Sichuan Province,whose teaching content was “Molecules and Cells”,a PEP compulsory biology course for senior high school.The traditional teaching model of non-big data precision teaching was adopted in the control class,and the precision teaching based on answer sheet and big data platform was adopted in the experimental class.The effects of the two teaching modes were compared in terms of students’ interest in learning biology,classroom communication behavior,classroom independent inquiry behavior,and student performance.The results and conclusions of this study are summarized as follows:1.The teachers of D Middle School in Sichuan Province generally hold a positive attitude towards the high school biology precision teaching model based on big data,but the actual application needs to be improved.Teachers use this teaching model less frequently,and it is often limited to the teaching and evaluation of exam papers.The teachers and students of this school use big data precision teaching platforms less frequently and with limited functionality.Most teachers only use the platform to process homework,while some students only use the platform’s "score query" and "error book" functions.The teachers and students of this school believe that using student tablets to collect data has the advantages of being fast,simple and environmentally friendly,but long-term use of tablets has shortcomings such as affecting writing ability,resulting in visual fatigue and high maintenance costs.2.The precision teaching model of high school biology based on answer sheet and big data platform is constructed.Compared with the previous precision teaching model based on big data,this model has the following advantages:(1)Preserving the core link of big data precision teaching and abandoning the previous precision teaching models of designing personalized preview tasks before class,dividing learning groups before class,and conducting real-time detection during class that are detached from teaching reality,in order to reduce the burden on teachers and improve their enthusiasm for use.(2)Use answer sheet and scanner instead of student tablet,in line with the policy requirements,protect students’ eyesight and writing ability,reduce the difficulty of school management,reduce the financial burden of students’ families,promote educational equity.(3)The new teaching model has low requirements for school hardware and is easier to promote.3.The results of precision teaching practice of biology in high school based on answer sheet and big data platform indicate that,the new teaching model can help students improve their grades,stimulate students’ interest in learning biology,promote classroom communication,and promote students’ independent inquiry in class. |
