Education researchers at Drexel University and Bowling Green State University have developed a series of validated problem-solving classroom-based tests for grades six, seven, and eight.  These measures reflect the complexity of assessing mathematical problem solving within the context of grade-level content standards and include problems from low to high difficulty in each of the main content areas for each grade level in math.  Teachers are then able to use the results from these assessments to progress student learning and adapt lesson plans to better address gaps from classroom instruction.  The problem-solving measures are advantageous because they provide a way to align scores both within a certain grade level as well as to assess year-to-year student growth.