Probability And Statistics Teaching Research Based On The Core Literacy Of Data Analysis

Statistics is a subject that studies the collection,arrangement and analysis of data;probability is a subject that studies the laws of random phenomena.In the 21 st century,we have entered the era of big data,and the application of probability and statistics is increasingly extensive.It not only has a very strict mathematical basis,but also penetrates into various subject fields,through collecting,arranging,analyzing data and judging problems based on data Analysis has become people's basic quality and ability.And in Mathematics Curriculum Standards for General Senior High Schools(2017 Edition),it also takes “data analysis” as one of the six core qualities necessary for students to be trained in high school curriculum objectives.Therefore,in the teaching process,mainly through the teaching of probability and statistics to cultivate students' data analysis literacy.This research is mainly from the teaching research of probability and statistics under the cultivation of data analysis literacy.This paper mainly studies two questions:(1)what is the current situation of data analysis literacy level of students in three grades in senior high school?(2)In the teaching of probability and statistics in senior high school,how to cultivate students' data analysis literacy? First of all,through the analysis of literature review,the data analysis literacy level is divided into three dimensions,specifically,dimension 1: data collection and sorting,including “data collection,visual sorting of receipts and data preprocessing”;dimension 2: Modeling and inferring data,including “probability model building,statistical model building and data inferring”;dimension 3: uncertainty The cognition of definite knowledge includes “thinking and expression of probability and statistics knowledge”.According to the analysis of literature,each dimension is divided into four levels by using solo classification.According to this evaluation framework,the data analysis literacy level of students in three grades of senior high school is investigated.All elements of each dimension are divided into four levels according to the level of students' answering.According to the former structure level(P),single structure level(U),multiple structure level(m)and related structure level(R)of solo classification,the scoring criteria are established.Analyze the students' answers.According to the investigation and research in each dimension,the implementation of probability and statisticsteaching based on data analysis literacy for senior students is targeted.Through classroom observation,the change process of students' data analysis literacy level is analyzed.Through the above survey,we can draw the conclusion: the data level of the three grades in Senior High School:(1)there is a significant gap between the data analysis literacy level of students in different dimensions;(2)the data analysis literacy level of students in senior high school is not necessarily high;(3)the data analysis literacy level of the three grades in senior high school is low.According to the survey results and teaching case studies,the following teaching strategies and suggestions are put forward:(1)according to the curriculum standards,grasp the teaching content of probability and statistics as a whole;(2)use the reality of life to set up problem situations;(3)grasp the connection teaching of probability and statistics in junior and senior high schools;(4)pay attention to the integration of information technology and probability statistics teaching.