| The sense of quantity is the intuitive perception of the measurable properties and the relationship between size and quantity of things.Our teaching strategy about quantity sense is few.Based on this,this study mainly adopts literature research method,text analysis method and questionnaire survey method.Investigate the teaching strategies for " mass" sense of quantity at home and abroad.Taking "Teaching strategy of" mass " sense of quantity" as the research question,the student edition test paper is designed around six aspects of " mass" sense of quantity,namely the meaning of " mass" sense of quantity,the choice of " mass" sense of quantity,the comparison of " mass" sense of quantity,the conversion of " mass" sense of quantity,the reasoning of " mass" sense of quantity,the application of " mass" sense of quantity and so on.The results show that: students lack the embodied experience of quality;Easy to be confused by other units;Lack of ability to convert text into image representation;Lack of application consciousness of quality unit and unified quality unit thinking;Large value(tens of kilograms)unit conversion is weak;It is difficult to find the related quantitative relation from the topic.Based on the above survey results,corresponding teaching strategies are proposed:providing hands-on experience opportunities to increase students’ embodied experience;Design "mathematical diary" to improve the differentiation consciousness of mass units;To establish the consciousness of "balanced metaphor" and improve the ability to transform words into images;Establish a complete unit cognition system to enhance the application consciousness of mass units;Provide different mass experience,improve the embodied experience of different mass units;Build "unit value conversion table" to improve the ability of large value unit conversion;Strengthen unit application consciousness,improve reasoning ability;Cultivate the consciousness of "container metaphor" and improve the ability of quantitative relation;Cultivate "reward metaphor" thinking and improve abstract ability.It can be used by front-line teachers when teaching " mass " sense of quantity.Innovation:1.By investigating the problems existing in students’ sense of "mass" and quantity,the corresponding teaching strategies of "mass" and quantity sense are proposed... |