I don't think teachers read the textbooks. And I don't think adoption committees read the textbooks before they adopt them. I think they look at them.

All of the common core standards stuff about critical reading and critical thinking and so on can only be positive.

The layout of textbooks, I think, has been done with an assumption that students don't read.

Conclusions are not always pleasant.

I've been in towns where there is no library, or where the library for the high school and the library for the town is one room, and it's smaller than my modest living room here. So you don't have many resources in 1950 or even 1970. This is the year, 2013, every town in America is connected to the web. Every town in America is therefore connected to all kinds of resources at the Library of Congress, at 100,000 websites.

Cherishing Columbus is a characteristic of white history, not American history.

The world, of course, doesn't come divided into disciplines. The world just is.