Content analysis of science textbook of the elementary school fifth grade based on Dewey's problem-solving model

This research was conducted with the aim of content analysis of science textbook of the elementary school fifth grade based on Dewey’s problem-solving model. The general approach of textbook for problem solving process was performed by using William Romei technique، and two checklists were used with 87. 5% reliability to investigate stages and necessary skills in lessons. The results showed that stages and skills of problem solving have not been considered sufficiently in the science textbook. Only three out of eleven lessons of the textbook have conformity with problem solving stages in the framework of content presentation and its activities in the field of organizing the content-based problem solving stages of Dewey. Therefore، organizing the content structure of the textbook did not provide the opportunity for teaching in problem solving method. In the field of necessary problem solving skills، have not been uniformly applied in the textbook and the essential skills were categorized in ten different types. They were including observational skills، classification، measurement، tools application، information gathering، hypothesis and prediction، discussion on the results and findings، selection of variables، communication، evaluation and the design of research. Considerable differences were observed in their frequencies and the differences included the frequency spectrum of 0 to 37. Meanwhile، the most attention was paid to the skills of interpretation، inference and conclusion and the least attention was paid to variables of recognition and assessment skills.