The purpose of this research is to study the effect of divergent thinking models based on bitmap graphical sources towards student's achievement in exploring fact essay writing content. The quasi-experimental method was used in this study through quantitative research design. The sample consisted of 30 form four students of one of the schools in the Bangsar Zone, Federal Territory, Kuala Lumpur. This group of students was determined by the school itself. They are in the context of an intact group. The data were analyzed descriptively and inferentially. Descriptive data is mean and standard deviation. The data were also analyzed inferentially using ANCOVA. The result shows that the value of F = (1,27) = 13.1 with the significance level <0.05. This indicates that there is a significant difference between pre-test and post-test. In terms of implications, the model is particularly useful in the study of fact-writing for form four students. This is reflected through the improvement in student's achievement between pre-test and posttest.