Research On The Construction Of Evaluation Indicators Of Computational Thinking For Junior High School Information Technology Courses

Computational thinking is the fourth basic ability after reading,writing and counting,which has been incorporated into the new curriculum standard of high school information technology in our country and has become one of the core elements of the four major disciplines.As a junior high school student of digital natives,in order to adapt to the future study and work,it is necessary to learn and possess computational thinking.As the new curriculum standard is implemented in the teaching,the existing evaluation is not suitable or not meet the requirements of computational thinking evaluation.How to evaluate the level of the computational thinking literacy of junior middle school students is the urgent need of information technology classroom teaching.In this paper,the research object is "junior middle school students",and "building information technology course evaluation indicators for computational thinking" is the research objective.Research mainly adopts literature analysis,classroom observation method,Delphi method,analytic hierarchy process(Ahp),and constructs the first second level indexes and indicators description of computational thinking evaluation.The paper mainly studies from the following four aspects.Firstly,the first and second level indexes of computational thinking evaluation are indicator description.Research based on the new curriculum standard,On the basis of analyzing computational thinking's factors and the three stages of computational thinking application process,the first and second level indexes of computational thinking about information technology in junior middle school students are preliminarily designed.According to the classroom observation,we extracted the computational thinking behavior verbs and described the second-level indexes of the evaluation of computational thinking.Secondly,Assign and determine the weight of evaluation indicators.The distribution and determination of the weight still adopt Delphi method,and the final confirmation of the first,second level index and index description are designed as a weight questionnaire,which is distributed to the experts.Both data are analyzed in terms of the modal number,mean,standard deviation,the absolute value of the difference between the modal number and the mean.According to the experts suggestions,the evaluation indicators were deleted,added and modified.Finally,the first and second level indexes and indicators descriptions of the computational thinking evaluation of junior middle school information technology course are obtained.Thirdly,the weight of evaluation indicators is calculated.The calculation of weight is still adopted Delphi method.Thus,the final one,second index and evaluation criteria are designed as the relative weight of the questionnaire.Yaahp software is used to analyze data and obtain the weight of all levels.Finally,The rationality and maneuverability of the evaluation index are verified.The final evaluation indicators is designed into the form of evaluation form and applied to teaching practice.The weighted average method is used to calculate the students' computational thinking quality.The experimental results show that the evaluation indicator can measure the students' computational thinking literacy level.Moreover,the evaluation indicator is operable,and it is convenient for the first-line teachers to carry out teaching evaluation.Based on the analysis of computational thought connotation,elements and explicit behavior,on the basis of student after two rounds of expert consultation,determine indicator weight,build the junior middle school information technology curriculum evaluation indicators of computational thinking.The establishment of evaluation indicators not only provides reference for teachers' teaching evaluation,but also provides a basis for the design of teachers' teaching activities.