Study On The Application Of Sandwich Teaching Method In Secondary Vocational Teaching

In the comprehensive development of education reform,teachers keep trying and applying cooperative learning,game learning,case learning and other teaching methods,among which sandwich teaching has gradually been widely used in the field of medicine and education,and is very common in teaching.Small and medium class teaching.This teaching method has seven links:homework,group discussion,cross discussion,group rediscussion,group report,"goldfish tank" discussion,teacher summary and so on.It reflects the alternation of individual learning form and collective learning form,and highlights the alternation of individual learning form and collective learning form.The teaching features of "student-centered,active learning,problem solving,process evaluation".At the same time,in order to promote the education level of large class teaching in middle and western secondary vocational schools,A new sandwich teaching method has been applied in classroom teaching in Tianshui A secondary vocational school.The sandwich method was applied to plant protection techniques in schools.For example,"the external structure of insects,understanding of insect biology,internal structure of insects,integrated control of plant pests and diseases".In this study,the comprehensive control of plant diseases and insect pests as an example was discussed in detail,highlighting the characteristics of sandwich teaching,improve the teaching quality of large class teaching in secondary vocational schools.The chosen vocational school has two freshman classes,namely,the practice group is Horticulture Class1902,which is taught by sandwiches,and the control group is Horticulture Class 1901,which is taught by "full irrigation",with 61 students.There was no statistical significance between gender and age of freshmen(P>0.05),and the teaching objectives of compulsory courses of plant protection technology were consistent.The teaching quality of this study will be considered from two aspects:students’ test and final grade(the practice group has classroom performance),students’ questionnaire star survey.Of 30 students in two classes,using Excel statistical analysis software,SPSS 24.0 statistical software for collation,induction and statistics.Four tests showed,experimental group horticultural 1902 class highest 85.13 points lowest67.93 points,and control group horticulture 1901 class average score highest 77.83 points lowest 67.20 points;Final results show,the experimental group was better than the control group;Meanwhile,both the sandwich teaching and the "full hall irrigation" teaching were significantly different(P<0.01).The survey showed that the students in the experimental group were better than those in the control group in learning interest,behavioral response and learning attitude.Therefore,the sandwich method can make students increase their motivation in class and have a good habit of active learning in class.In the process evaluation,the discussion of problem solving promotes the cultivation of students’ "four abilities",so as to produce better teaching effect,which is worthy of further application and popularization.