The Application Of PBL Teaching Model Based On Computational Thinking In Scratch Course Of Elementary School

Computing thinking is not only a very popular research topic in the field of computers and education,but also part of the world's three major scientific thinking.Therefore,each of us needs to master this basic skill.With the development of information technology,how to improve computing thinking ability and cultivate innovative talents with high information literacy is particularly important.At present,domestic and foreign experts will be the main teaching computational thinking teaching basic computer courses at the University,and how to cultivate the computational thinking of students in primary school information technology curriculum teaching is still in the exploratory stage,besides the computational thinking training mode and no specific information technology curriculum as the basis.This paper based on project-based learning and computational thinking based on relevant theories,first of all,the concept of computational thinking combined with project-based learning teaching mode,construct a new mode of teaching and learning: Project-Based Learning Teaching Model based on Computational Thinking(PBLTMCT model);Secondly,the model is applied to the Scratch curriculum of primary school to carry out specific teaching practice.Finally,the effectiveness and feasibility of the PBL teaching model based on computational thinking are analyzed.This article reflects the construction of PBL teaching model based on computing thinking from the following four aspects:Firstly,the definition of project-based learning and computational thinking and the development status at home and abroad are briefly described.By analyzing the advantages and disadvantages of project-based learning and other teaching models to cultivate computing thinking,a project-based learning and computing thinking model for information technology classroom is proposed.Secondly,under the guidance of the theoretical foundation,the computational thinking is integrated into the project-based learning,the theory and practice are combined,and the PBL teaching model based on computational thinking is constructed(PBLTMCT model).Thirdly,the constructed PBLTMCT model is formalized and mathematical formulas are used to express the training effect of computational thinking ability.According to the essence of computational thinking abstraction and automation,the formalization process is abstracted into an incremental equation.Fourthly,the PBLTMCT model was applied to the elementary school Scratch course to observe whether it promoted the students' ability to calculate thinking,thus verifying the practicability and validity of the model.As the core training goal of PBL teaching mode based on Computational Thinking Ability of computational thinking,the calculation of teaching information technology curriculum and primary school thinking method to integration,to explore how the ways and methods to cultivate the students' computational thinking ability,enhance learners and workers to understand the computational thinking.