In this qualitative study we examined teacher perceptions related to the optional practice of having part or all of a student’s results to Ontario’s annual Grade 9 province-wide assessment of Mathematics count for his or her final course grades. In response to items from the background questionnaire administered in 2009-2012, 90% percent of teachers from Ontario’s French-language schools agree that the practice motivates students to take the assessment more seriously. Related comments show concerns primarily regarding student characteristics and behavior as well as test conditions and characteristics such as the test stakes and the weight attributed to the results. The reported issues parallel those proposed by Eklöf (2010) in her model on the relationships between test stakes, test-taking motivation and test performance.