This paper comprehensively considers the needs of the country,the requirements of the new curriculum reform,the development trend of STEAM education,and the needs of students' self-development,and draws the importance and significance of the teaching of science engineering projects in primary schools.At the same time,elementary science has become an important and effective means of education in our science engineering projects because of its comprehensiveness and foundation.The development of education is inseparable from effective teaching,and scaffolding teaching as an effective form of teaching can maximize the development of students and benefit the needs of the cultivation of innovative talents in China.Therefore,our primary school science teachers are required to develop their professionalism and build scaffolding for students in a timely and effective manner so that students can gradually climb along the conceptual framework.However,scaffolding is not a traditional indoctrinating teaching.It emphasizes that the main subject of learning is students,and that they should be “student-centered” in the teaching process.Therefore,in teaching,we must establish a benign knowledge framework for students,with a solid knowledge base and ability to explore.Also,don't underestimate or overestimate the plasticity of our students.Under the circumstances of fully understanding the pre-concept of students and the general situation of cognitive development,we should formulate the best learning tasks that students can achieve with guidance and help to form a good “Zone of Proximal Development” to promote the healthy development of students' physical and mental health.This study hopes that the application of scaffolding teaching in practical teaching can provide some thoughts for modern primary science education,and provide a solution for the current scientific education middle school students with low interest in learning and low core scientific literacy.This can promote students' motivation and improve the scientific interest of our students.In the end,our students will have a better core of science and become a qualified and innovative talent in the new era.On the basis of reviewing the literature,this study introduces the research status and theory of scaffolding teaching by using the literature research method,and proposes a scaffolding teaching strategy aiming at completing scientific engineering projects,so as to design and implement in the teaching of elementary science courses.A scaffolding teaching case,and in the design and implementation of the "production of solar water heaters" to create a field for students to survive,to drive students to solve real situations,and let students propose possible experimental variables,such as light The heating area,the temperature of the thermometer wire,the color of the heated object,the angle of illumination,etc.,through the control variable method to conduct a one-to-one comparison experiment,and the data obtained are charted,data analysis,in the design of independent project activities and conduct scientific inquiry in the implementation.Finally,the implementation results of the experimental and control classes were analyzed by questionnaires and statistical analysis.It is concluded that the experimental class with the implementation of the scaffolding instruction is better than the control class,which verifies the effectiveness of the scaffolding instruction in practical teaching.Therefore,it is necessary to implement scaffolding instruction in the current primary science teaching. |