Research On Teaching Design Based On Three-dimensional Framework Of Computational Thinking

In today's society,the rapid development of information technology and computer technology has brought tremendous impact on people's learning and life.Computational thinking has become the ability that people must have to cope with the future development of the era of artificial intelligence and the information age.All countries in the world have realized the importance of computational thinking ability,and have formulated corresponding plans to promote the cultivation of computational thinking ability.Computational thinking must not only be cultivated at the stage of higher education,but also from young people and primary and secondary schools.The cultivation of students 'computational thinking mainly relies on information technology courses.Programming teaching has become one of the most direct and effective ways to cultivate students' computational thinking.However,in actual classroom teaching,how to design reasonable development of instructional design to effectively train students' thinking ability in calculation has become a key issue for current researchers.Scratch is a graphical programming software suitable for teenagers.It implements programming by dragging and dropping like building blocks.Its simple and interesting interface and visual programming features are popular among teachers and students.This research builds an instructional design model for the cultivation of computational thinking through the scratch visual programming software and the three-dimensional framework of computational thinking proposed by MIT abroad,and implements it in information technology courses.Through teaching,research and analysis,students are learning this course The development of computational thinking ability in the process,I hope that through the scratch teaching based on the three-dimensional framework of computational thinking,to improve students' computational thinking ability.First of all,this study analyzes and sorts out the literature about scratch teaching and computational thinking collected in order to understand the current status of the teaching and computational thinking and its evaluation at home and abroad,as well as the relevant concepts and concepts involved in this study.The theoretical basis is explained systematically.A detailed introduction to the three-dimensional framework model of computational thinking.Lay the foundation for subsequent teaching.Secondly,based on the above collation of the literature,the three-dimensional framework of computational thinking(computational concepts,computational practices,and computational concepts)is taken as the goal of the cultivation of computational thinking in scratch teaching,and an instructional design model using graphical programming software scratch is constructed,including learners Analysis,teaching objective analysis,teaching content design and teaching strategy formulation,and teaching evaluation design.And the instructional design model is applied to the teaching practice.Through the actual teaching practice,the teaching design model is used to study the computational thinking effect of the students,and it can be used as a reference for other researchers.Finally,after practical research,through sorting and analyzing classroom observations,questionnaire surveys,work analysis and interview content data,we investigate the effect of scratch teaching on students 'computational thinking cultivation and students' emotional attitudes towards scratch.Teaching practice shows that after a semester of scratch teaching,students' abilities in computing concepts,computing practices,and computing concepts have been improved.Through the questionnaire analysis,it is concluded that students can gradually master the computing concepts involved in scratch.Students are interested in scratch courses based on the three-dimensional framework of computational thinking,which promotes the formation of computing concepts.Through the analysis of the works,students 'scratch practice,that is,"computing practice" ability can be improved,and at the same time promote students' understanding of computing concepts.Through research and analysis,it is concluded that scratch teaching based on the three-dimensional framework of computational thinking can effectively train students' computational thinking ability.