Arnprior District High School (ADHS) participates annually in the Ontario Secondary School Mathematics Provincial Assessment under the direction of the Education Quality and Accountability Office (EQAO).

The purpose of the testing is to determine whether or not students have acquired the mathematics skills that they are expected to have learned by the end of Grade 8, as outlined in The Ontario Curriculum. The test results also enhance knowledge about student learning, and are important tool for improvement at the individual school and provincial levels.

The test is written in the Grade 9 year for both Academic and Applied students.