| The situation that biology teaching should focus on improving students' ability to use knowledge to solve biological problems in real life is emphasized in General Senior High School Biology Curriculum Standards(2017 Edition).The cultivation of students' problem awareness and the improvement of problem-solving ability are closely related to the creation of problem situations in teaching.The creation of the problem situation specifically refers to a method in which the teacher uses a variety of teaching methods according to the specific teaching content to create a problem situation that is conducive to students' understanding of knowledge and ability to guide teaching.The application of problem situation in biology teaching in senior high school meets the requirements of the curriculum standards.The types and characteristics of problem situations and the principles and ways of creating situational situations were mainly analyzed in this paper.The teaching content of the "Molecular and Cellular" module,which is suitable for problem situation creation,has been sorted out in order to provide reference for teacher to create problem situation in biology teaching.In addition,the teaching effect created by the problem situation was tested by the experimental teaching method.Two parallel classes were selected for teaching practice in the internship school.The experimental class adopted the teaching method created by the problem situation,and the control class adopted the conventional teaching method.Through questionnaires,the changes of students' interest in biology learning,problem awareness and problem solving ability before and after teaching practice were investigated.The examination was used to detect the changes of students' biological achievement in the two classes.The data were analyzed by statistical analysis and the results are as follows:(1)The biological learning interest of the students in the experimental class is significantly higher than that of the students in the control class(Sig.=0.00,P<0.05),which indicates that the problem situation creation in the high school biology teaching can improve the students' interest in learning biology.(2)The problem awareness of the experimental class students is significantly higher than that of the control class students(Sig.=0.01,P<0.05),which indicates that the problem situation creation in the high school biology teaching can cultivate the students' critical thinking and improve the students' ability to ask questions.(3)The problem solving ability of the experimental class students was significantly higher than that of the control class students(Sig.=0.01,P<0.05),which indicates that the problem situation creation in the high school biology teaching can improve students' problem solving ability.(4)The biological performance of the experimental class students is significantly higher than that of the control class students(Sig.=0.00,P<0.05),which indicates that the problem situation creation in the high school biology teaching helps students to improve biological achievements.In conclusion,the creation of problem situations in senior high school biology teaching is conducive to arousing students 'interest in learning,cultivating students' ability to discover and solve problems,and promoting students' academic performance. |