Abstract:
The purposes of this research were to develop the model for elementary school teacher to design instruction on teaching science by incorporating nature of science, and to evaluate the developed model through evaluating the elementary school teachers abiity in: designing science subject instruction and understanding of nature of science. The study process comprised two phases. The first phase was developing the model for elementary school teacher to be able to design instruction on teaching science by integrating nature of science, utilizing the concept of teacher professional development, adult learning and constructivism theory. The second phase was evaluating the effectiveness of the developed model. The samples were 27 elementary school teachers. The time spent for evaluation process was 36 hours. The tools used in the study were: 1) lesson plan for using the developed model, 2) instructional design assessment form, and 3) the test on understanding the nature of science. The statistics for data analyses were mean, standard deviation, and t-test.
The research results were: 1) the teacher development model consisted of the following activities: the preparation stage, it is for preparing the knowledge on the nature of science, knowledge on instructional design to build the background knowledge, the analysis stage, the teachers analyzed to assure that the lesson plan incorporates the nature of science, the revision stage, the teachers revise the lesson plan according to the revision requirement, the final stage, the reflection stage, the teachers reflect and present the revised lesson plan. 2) Concerning the evaluation of the developed model, it was found that scores on the instructional design ability of the teachers was at 2.86 which are significantly higher than the pretest score at the .05 level. 3) The elementary school teacher possesses the score of understanding of nature of science after participating in the development model at 2.76 which is significantly higher than the pre participation at the .05 level.