Abstract:
This research aimed to study elements of analytical thinking to develop science instructional model that promoted the analytical thinking ability of students and compare the difference between pretest and posttest mean score of the science attitude test. The sample consisted of 40 Mattayom Suksa four students of Satri Angthong school. Research Instruments were 10 activities in Learning management plans which composed of 8 stages : 1) check of background knowledge, 2) problem perception, 3) fact codification, 4) identification of reason for choosing problems, 5) analysis, 6) experiment, 7) summary and 8) evaluation orderly; an analytical thinking ability test consisted of 6 aspects and in each aspect included analytical thinking of classification, reasoning, relationship connection, application and integration; and a science attitude test. The experimental time employed in this study were 30 periods. The analytical thinking Tests were administrated in forms of pretest and posttest. The tests were taken every 2 weeks at a time : totally 6 times. Statistic used was Repeated Measure ANOVA.
Results of the study were as follows:
1) The main elements of analytical thinking were 1) detail classification, 2) reasons given by observation and 3) relationship connection of application and integration.
2) The developed science instructional model could increase the analytical thinking of students at statistically significant level of .05.
3) The students were taught with this model. The comparison of pretest and posttest mean score of the science attitude test of the students who learned through this model was revealed that there was no difference because of the sample of students were already in major of science and they also interested in science.