This study's purpose was to propose methods for the assessment of high-school students,
including differentiated assessments in the areas of differential and integral calculus using a
graphing calculator as does the International Assessment. The assessment system that we use
now for students who move to post-secondary education is the 9-phase subjective assessment.
This assessment has exacerbated the problem of boosting private education, and has difficulties
in evaluating students' achievement levels with respect to instructional objectives. The proposed
assessment has the potential to lead mathematical education movement in the direction we
pursue. Process-based assessment using a calculator could therefore be one of solutions to the
current problems that we are encountering with respect to differential and integral calculus.