Roberta Sawtelle
Known Errors in Study Material yet Company Defends without even caring about finding out what the errors are. They are selling incorrect information
I had purchased just a month ago a study guide to pass the TeXes Math 8-12 teacher certification test.in their trignometry section, I found a blatant error in a formula that they are teaching. I contacted them via email about finding an error. Their response was to defend themselves and they didn't ...