| Based on the NOBOOK virtual experiment platform,this study takes the third grade chemistry experiment course as the research object,under the background of virtual experiment technology,takes the constructivism theory,the autonomous learning theory,the Bloom goal classification theory as the theoretical guidance,carries on the teaching design and the application research to the third grade chemistry experiment course.First of all,the present situation of chemistry experiment teaching in junior high school,the hardware level and network status of junior high school,the computer level of junior high school teachers and students,and the attitude of junior high school teachers and students to introducing virtual experiment into the classroom are investigated by questionnaire.Secondly,the characteristics of virtual experiment,the function of NOBOOK virtual experiment platform and the classification of teaching material content of junior high school chemistry experiment are analyzed synthetically,and the teaching design mode of virtual experiment is constructed under the guidance of pedagogy theory combined with questionnaire survey results.Based on the principles and principles of virtual experiment teaching design By using NOBOOK virtual experiment platform in chemistry class of a middle school,the corresponding experimental class and control class samples were selected for comparative experimental study.Finally,the evaluation scheme and data analysis of teaching experiment are designed.By comparing the final grades of the experimental class and the control class,the effect of this study on students’ chemical cognitive ability was measured over a period of time.This study was used to measure the effect of this study on the students’ chemical experiment operation skills by analyzing the scores of the test scores.The impact of this study on students’ emotional attitudes was measured by developing a Likert attitude scale.We can see from the comparative experimental data analysis that the P value T the final grade independent sample test is 0.045<0.05,which shows that the application of virtual experimental platform teaching method is more conducive to improve the teaching effect than the traditional teaching method,and is conducive to the improvement of students’ chemical cognitive ability.The standard deviation of the students’ attitude scale was 5.215 smaller than that of the control class,and the average value was 5.215 lower than that of the control class high 9.624,and the P value <0.05,indicating that in terms of emotional attitude,it is beneficial to enhance students’ interest in learning and has a significant promoting effect. |