The purpose of this study was to determine the effects of incorporating mathematics teaching and integration strategies (MTIS) in a teaching methods course on preservice agricultural teachers' mathematics ability. The research design was quasi-experimental and utilized a nonequivalent control group. The MTIS treatment had a positive effect on the mathematics ability scores of the participants, and a statistically significant difference was found based upon the MTIS treatment. Based on the results of this study, the MTIS treatment should be considered for use in an agricultural teaching methods course to increase the mathematics ability of preservice agricultural education teachers.