This guy knows a lot about the textbook industry, but I'm not sure he knows much about teaching and learning. How you design texts can make a difference (googl

This guy knows a lot about the textbook industry, but I'm not sure he knows much about teaching and learning. How you design texts can make a difference (google "conceptual change texts" for example), but how much do textbooks really influence the quality of instruction? If a teacher is just blindly following a textbook (and not doing other things like supporting students, using interactive software, etc.), then there are bigger problems. Ironically, too, students would learn more from a textbook with mistakes in it if they were made aware of that fact and encouraged to find them. I know I learned the most in geometry where I had a teacher who couldn't even draw a circle and made mistakes every single day.