I second the recommendation that it's time to write to the 504 coordinator instead, with the following points:
- DS is currently earning a C in Geometry
- DS's teacher has stated directly to you that the reason is because DS's scores are degraded for handwriting and punctuation
- This is in direct violation of the 504.
- You have asked for test copies to validate, the teacher has failed to provide them, and when asked about it, transferred blame to DS.
And ask for immediate intervention to resolve the issue.
Dude: precisely so.
