A grade checker works in the construction industry, typically on roadways, to set grade stakes meant to guide equipment operators on sloping highways and embankments. In this career, you set these grade stakes using hand tools, measuring instruments, and using specified ratios. Once the worksite has been set up, you watch the excavation process to ensure the operator hits each correct mark. Finally, after the excavation process is complete, you use GPS equipment to survey the worksite and ensure that the grade is as it was originally planned. If not, you lay additional stakes and the process happens again.