Discontinued in 2006 catalog.
I start off with a general response ... that when we change our product recommendations, it's not that we feel the original product was "bad", but rather that we feel the new product is a "better" resource for our customers.
In this case I highlight the benefits of Teaching Textbooks ... the fact that they provide solutions to *all* problems (practice and problem sets) ... that their order of subjects tends to line up "better" with the public school system (distinct Pre-Algebra, Algebra 1, Algebra 2 and Geometry products) ... that we've had a significant amount of positive feedback and recommendations from our customers ...
If they really push, I have also mentioned that VT was not real reliable in getting their products completed by their projected release dates.
Judy
Pretty similar to Judy's answer. I really stayed away from saying the 'math' was inferior. Instead I stuck to the idea that the fact that since TT has complete solutions for every problem it was better, allowed the student to be more independent, etc. I also talked about how you couldn't switch in the middle of Algebra with VT -- either you do all 6 modules or you haven't finished Algebra 1. Imo, this is a serious drawback with VT.
Rhonda