Research On Measurement And Assessment Senior Two Students' Level Of Literacy Of “Evidence Reasoning And Model Cognition” In Guangxi Minority Area

Chemistry discipline core literacy is a component of developing students' core literacy,among which "evidence reasoning and model cognition" literacy is an important embodiment of chemistry subject thinking and plays a guiding role in chemistry learning.Guangxi has the largest minority population in China,and the development of its students' discipline literacy is worth paying attention to,It is an urgent problem to understand the development level of the chemistry discipline core literacy in senior high school students in ethnic minority areas and to carry out new chemistry course teaching based on the students' literacy.There are few measurement and assessment students' chemistry dicipline core literacy in Guangxi minority areas in the existing research,therefore,this research focused on "evidence reasoning and model cognition" literacy,and carried out measurement and assessment in guangxi minority areas,providing reference for developing students' accomplishment and promoting the reform of chemistry teaching.By combing the domestic and foreign present situation about evidence reasoning and model recognition,measurement and assessment core literacy research,determine the research topics for the survey of guangxi ethnic areas of senior two students' level of "evidence reasoning and model cognition" literacy,in the new curriculum standard "evidence reasoning and model cognition" literacy level as the basis,combining with the characteristics of high school chemistry knowledge from the High School Entrance Examination,High School Academic Level Test and National College Entrance Examination the compilation of test questions,The Rasch model is used to check the quality of the test paper.After testing and optimization,a good quality "evidence reasoning and model cognition" literacy test paper was obtained.The reliability and validity of the questionnaire prepared from the content dimensions of learning motivation,learning strategies,school conditions and teaching methods were good.This research,some senior two students from ethnic minority areas in Baise,Hechi,Guilin and Yulin of Guangxi were selected,and the tool of "evidence reasoning and model cognition" was used to conduct measurement and assessment.The research found that: the average level of "evidence reasoning and model cognition" literacy of the students was at level 2;there are gender differences in the level of students' " evidence reasoning and model cognition" literacy,and the overall literacy level of boys is higher than that of girls;learning strategies and teaching methods have significant influence on the development of students' discipline core literacy.Based on the above conclusions,the following teaching suggestions are put forward to promote the development of students' "evidence reasoning and model cognition" literacy: strengthen students' evidence awareness,improve the ability of systematic collection and processing of evidence;pay attention to the cognitive process of students' model,clarify common chemical and theoretical models;actively carry out exploratory learning activities to comprehensively develop the core quality of chemistry;give reasonable learning strategy guidance to promote the change of students' learning style.The innovation of this study is to construct and optimize the evaluation tool based on Rasch model,measure the students' literacy level of "evidence reasoning and model cognition" of in Guangxi ethnic areas,analyze the relationship between influencing factors and the development of students' literacy,and put forward teaching suggestions.Due to my limited research experience,there are still some problems in this study,such as insufficient coverage of research objects,imperfect measurement and assessment tools,and the exploration of other dimensions of discipline literacy,which need further research.