Research On The Development And Application Of High School Chemistry Proposition Materials Based On Real Situations

Under the dual background of the new curriculum standard and the new college entrance examination reform,chemistry teaching and examination proposition pay more and more attention to the real situation as the carrier to implement and examine students ’ subject literacy and subject ability.The situational materials needed by the former mainly come from curriculum standards or textbooks,while the latter are drawn from various fields related to chemistry.Therefore,the purpose of this study is to provide a reference for front-line teachers based on the real situation of the material development strategy and situational proposition procedure,guide them to actively participate in the independent proposition work,improve their professional ability.At the same time,it can also enable students to test their learning results through targeted high-quality test questions designed by teachers,and realize the integration of more personalized " teaching evaluation ".This study is divided into the following five parts: The first part is " introduction ",which expounds the origin of the research problem through literature research,points out the content,purpose and significance of the research,clarifies the research emphasis and difficulties,and formulates the research route and method.Secondly,the relevant research status and achievements at home and abroad are reviewed through literature review.The second part is "concept definition and theoretical basis ".Firstly,combined with the needs of relevant data analysis and research content,the core concepts such as " situation "," chemical proposition material " and " real situation test " are expressed.Secondly,according to the research content,relevant theories are selected for general description,which provides theoretical reference for the development process and strategy exploration of situational materials and proposition practice.The third part is the analysis and investigation of the current situation.Firstly,from the perspective of the analysis of the college entrance examination questions,the situation of the national college entrance examination chemistry questions in the past three years is sorted out and counted,and the situation types of the college entrance examination questions are subdivided into eight types according to their sources and characteristics,which lays an empirical foundation for the exploration of the development strategy of the subsequent situation materials.Secondly,in line with the purpose of developing situational materials to serve situational proposition,a questionnaire survey was conducted on front-line teachers with the theme of " the current situation of situational proposition ability ",to collect their opinions and suggestions on the development of situational materials,to understand the specific obstacles and difficulties of teachers in the process of formulating situational questions,to evaluate their own proposition ability,and to study the proposition practice based on the comprehensive survey results.The fourth part is " proposition material development and application ".Firstly,based on the previous research,the theoretical exploration of proposition material development based on real situation is carried out,and the proposition value,proposition material development strategy and basic process based on real situation are put forward.Secondly,based on the theoretical framework of the college entrance examination evaluation system,combined with the development process of situational materials,the proposition process is formulated,and the development and proposition case study of situational materials are carried out from the perspectives of domestic and foreign hot news,domestic and foreign chemical journal literature,daily life and chemical production.Finally,through the original proposition test,the quality of the test questions is qualitatively and quantitatively analyzed,and the matters that should be paid attention to in the process of proposition are summarized in combination with student interviews.The fifth part is " summary and prospect ",which summarizes and reflects on the whole content and process involved in this research,and puts forward the prospect.This paper takes situational proposition as the goal,puts forward the basic strategy and process of proposition material development based on real situation,formulates the situational proposition procedure based on the evaluation system of college entrance examination,and confirms its reliability through case development and original test,which is of great value to promote teachers ’ situational proposition practice and improve the quality of original test questions.From the results of the teacher questionnaire survey,teachers are widely recognized for the function and value of the test situation,and have a high willingness to contextualize the proposition.The biggest difficulty that hinders teachers from making original propositions is the collection of situational materials.From the test results of the original test questions and the analysis of the students ’ interviews,the situational test questions play a significant role in examining the students ’ comprehensive problem-solving ability,especially in the reading comprehension ability,reasoning and judgment ability and inquiry innovation ability.The test has the efficiency that the general test questions do not have.