Project-based Science And Technology Education Activities In Informal Environment

China has entered the fast lane of high-quality development,and is more eager than ever for the emergence of innovative talents.Examination-oriented education characterized by knowledge inculcation and mechanical brushing can not improve students’ ability to solve problems,but make students’ scientific interest and curiosity exhausted under heavy academic pressure.The central government’s "double reduction" policy,which focuses on "further reducing the burden of students’ homework and off-campus training in compulsory education",will bring students more autonomous and flexible learning space and time.Informal learning outside the "school-teacher-classroom" is more flexible and free learning in a broader space.This project advocates the practice of project-based activities in an informal environment: taking problem solving as the core,letting knowledge go to life,learning and using knowledge from reality,breaking the barriers of disciplines,breaking through the traditional teaching mode of science teaching centered on classrooms,teachers and textbooks,and truly improving learners’ learning ability.Under the international environmental background of "carbon peak" and "carbon neutrality",low-carbon and zero-carbon energy has become an inevitable pursuit,decarbonizing and raising hydrogen,making hydrogen energy the center of the energy stage.Hydrogen energy is one of the ideal alternative energy sources in energy transformation,which can play a flexible role in energy conversion and energy storage through hydrogen-oxygen fuel cells,and is an ideal "energy carrier".At present,the improvement of hydrogen-oxygen fuel cell teaching is limited to the design and production of teaching AIDS,and most of the achievements remain at the level of deflection of sensitive galvanometer and luminescence of diode,rarely involving the project-based learning and practice activities of using self-made hydrogen-oxygen fuel cell to drive mini cars.The "hydrogen car race" in this project is the organic integration of science and technology and sports,with the help of STEM education,to produce a "production-storage-use" integrated hydrogen car as an engineering driving problem,students integrate knowledge of various disciplines,explore principles,optimize design,hands-on production,form products,and ultimately "charge for 3 minutes,charge for 3 minutes." The result of "5 meters race" is the practice of presenting the results and evaluating the basis.Students cooperate and communicate in project activities,not afraid of difficulties,overcome all difficulties,cultivate comprehensive ability to solve problems across disciplines,and enhance scientific literacy.From in-class to out-of-class,from books to reality and social life,students will constantly touch the frontier of science and technology in practice,and will love science and aspire to serve the country through science.