Experimental Design And Practice Of High School Chemistry Hand-held Technology Based On Project Learning

Project-based learning is a kind of learning style in which students choose and make the most of their daily life experience around a specific learning project,acquire more complete and specific subject methods and knowledge in practice experience,internalization absorption,exploration and innovation,and get specialized skills and get knowledge development at last.The constructivism thought is obvious in project-based learning.And it contains driving problems,critical thinking,cooperative communication,communication,sharing and technical means as the central elements.Hand-held technology equipment has a powerful data processing system that can digitize,visualize and dynamic the experimental process.In the process of carrying out hand-held technology experiment,the core elements of project-based learning can be completed,and the experimental model of project-based hand held technology can be built to highlight the principal position of students in the learning process.In this study,the design case carries on the practice investigation in the middle school,and is praised by teachers and students.Through the data,it is found that this learning style can stimulate students’autonomy and desire to explore,enhance their innovation ability,promote their multi-angle thinking,and stimulate their interest in chemistry learning.Thus,the study has reference value for teachers’teaching as well as students’ learning.Based on the new curriculum standard,new curriculum reform and "internet" education,the study summarizes the advantages of project-based learning methods and hand-held technology experiments,and the necessity of project-based hand-held technology experiments.Through literature review,the main research direction,research purpose and research significance are proposed,and the research methods for this study are found,such as,documentary questionnaire,experimental research and so on.The operability and practical significance of the research are explored based on Dewey’s theory of learning by doing,constructivism,multiple intelligence theory and other related theories.Take the theory of multiple intelligences and constructivism as the guiding ideology to analyze the elements of project-based learning and design the hand-held experimental learning elements based on project-based learning,and then build the experimental model of it in high school chemistry.Two experimental cases,"vitamin C effervescent tablets" and "Yufuling" are designed after analyzing the experimental operation procedure and principles of selecting experiment resource and designing.Using SPSS20.0 data statistical software for processing and analyzing the interview results of teachers,we can see that the content of the project is related to life experience,provides situational materials for chemistry teaching and a very important teaching case for the new teaching materials to carry out diversified teaching,project-based learning and digital experiments.Besides,the advantage of"combination of numbers and shapes" of the sensor enhances students’ ability of data analysis,and have a positive impact on students’ learning enthusiasm,inquiry desire and autonomous learning ability.What’s more,the hand-held technology experiment based on project-based learning is considered as a good teaching method,having the better valuable practical usage and research value,and can cultivate students’ core accomplishment of the dimension of "macro identification and micro-analysis" and consciousness of scientific inquiry and innovation ".