The Effect Of Inquiry And Advance Organizer Learning Models On Science Process Skills of Respiratory System at MAN Rantauprapat

This study aimed to find out the effect of inquiry and advance organizer learning models on
students’ science process skills of respiratory system at MAN Rantauprapat. The population of this study were
the entire students of grade XI-IPA MAN Rantauprapat consisting of 4 classes (XI1 about 32 students, XI2 about
35 students, XI3 about 35 students and XI4 about 35 students). The samples of the study were grade XI2 treated
by using inquiry, grade XI3 treated by using advance organizer and grade XI4 treated by using conventional
learning model. The data collecting instruments of students’ science process skills were essay tests. The
technique of data analysis which was used namely an analysis of covariate (ANCOVA) with α = 0.05. The
results of this study were: (1) The results of an analysis of covariate (ANCOVA) showed that those learning
models had a significant effect to students’ science process (F = 362,48; P = 0,000). The average of students’
science process skills treated by inquiry has given an effect of 2,11% higher than treated by advance organizer
and of 35,80% higher than treated by conventional learning model. Class which was taught by using advance
organizer has given an effect of 34,06% higher than conventional learning model. It could be concluded that
there was a significant effect of inquiry and advance organizer learning models on students’ science process
skills of respiratory system at MAN Rantauprapat.