(Harrisburg) -- Governor Corbett says school teachers aren’t the only ones whose grading scale should change. He's singling out administrator evaluations as something he wants to see pass the legislature before the end of the year. The governor says he still wants to see his vision for school reform come to pass, complete with a revamped approach to the scoring system for teachers and school administrators. Corbett says the same grade inflation showing more than 99.4 percent of teachers to be satisfactory is being used to judge school administrators."Oh, by the way, administrators are 99.1 percent satisfactory. That can’t be the case," he says. "I don’t believe it. I don’t think any of you believe that that’s the case. So we need to evaluate better to help improve." A new grading method isn’t included in the vouchers bill that passed in the state Senate. But, the state House Education Committee has approved a measure to overhaul evaluations for school teachers, principals, and certified employees like guidance counselors and speech therapists. The proposal would have 50 percent of a principal’s grade based on student performance, and the other half based on observable skills. Only 20 percent of a counselor’s score would be based on student performance.