Research On The Design Of Problem-solving Learning Activities For Cultivating Computational Thinking

Computational thinking is a method of problem solving,and also a method of understanding the development of human problem solving process thinking through the basic concepts of computer science.Through analysis of relevant research at home and abroad,we can see that researchers at home and abroad have explored and practiced computational thinking and learning activity design from different perspectives,but the design of learning activities in domestic research that cultivates college students in computational thinking is rare,data,technology and platform support are lacking,and empirical research is insufficient.On the one hand,on the basis of literature analysis,through the computational thinking scale measurement and interview analysis of the research objects,it was found that among the five dimensions of computational thinking,the problem-solving dimension and creativity,algorithmic thinking,collaborative ability,critical thinking Compared with the other four dimensions,there is a big difference.Combining the problem-solving attributes of computational thinking itself,we can know from the side that students are inadequate in computational thinking as a whole.On the other hand,in the practice course "Database Technology and Application",learners generally have the phenomenon of "can solve specific problems,but can not be transferred to the actual problem situation".The side shows that the problem-solving thinking ability is lacking,and the calculation Lack of thinking ability.The learner has self-doubt in "whether he can solve related problems",and even some students can't know "what kind of problem they can solve" through learning.Aiming at the above problems,this research is guided by the problem-solving learning activity model oriented to the cultivation of computational thinking.Through an online problem-solving platform,a set of problem-solving learning activity programs oriented to the cultivation of computational thinking is formed to promote the development of college students' computational thinking.And practice learning activities in database courses to verify the scientificity and effectiveness of problem-solving learning activity design for computing thinking training.Under the above background,the main research methods used in this article are:literature research method,questionnaire survey method,interview method,action research method,the main research content and process are:(1)Computational thinking,learning activities and training for computing thinking A literature review of problem-solving learning activity design practice research,etc.,with a view to providing effective research suggestions for this research.(2)According to the guidance of learning activity theory,construct a problem-solving learning activity model oriented to the cultivation of computational thinking.(3)On the basis of the problem-solving learning activity model for the cultivation of computational thinking,using the query statements in "Database Technology and Application" as the teaching practice content,the problems existing in the database course are classified and compared with the calculation The core elements of thinking are matched,and a problem-solving learning activity design for computational thinking cultivation is carried out.And according to the actual needs of problem-solving learning activities,we designed and developed an "online problem-solving platform" that meets the needs of problem-solving learning activities as a learning environment to realize the link between knowledge andproblems,reduce unnecessary learning time waste due to software interference,and improve Learning efficiency,meeting teachers' needs for normal monitoring of learning activities and implementing differentiated guidance.(4)Finally,sixty-three junior students were practiced for six months of learning activities to verify the effectiveness of problem-solving learning activities for the cultivation of computational thinking to improve college students' computational thinking.On the basis of learning activity theory and online problem solving platform,a set of problem-solving learning activity process cases oriented to the cultivation of computational thinking was initially formed through the practice of learning activities.Through practical research,the following research conclusions are drawn:(1)Obtaining learning behavior data through the platform can effectively mine learning problems and observe computational thinking.(2)The dynamic monitoring of learning behaviors helps teachers implement learning interventions,which in turn fosters students' computational thinking.(3)The design of problem-solving learning activities can improve the level of computational thinking of college students.(4)The problem-solving learning activity design for computing thinking training has certain transferability.