Annie Keeghan, in an exhaustive look at how the meat gets made in math education publishing:
The root of problem begins with this key fact: There are only a small number of educational publishers left after rabid buyouts and mergers in the 90s, publishers that all vie for a piece of a four-billion dollar (forbes.com) pie. In recent years, math has become the subject du jour due to government initiatives and efforts to raise the rankings of U.S. students who lag behind in math compared to 30 other industrialized nations. With state and local budgets constrained to unprecedented levels, publishers must compete for fewer available dollars. As a result, many are rushing their products (especially in math) to market to before their competitors, product that in many instances is inherently, tragically flawed.
[via Tom Hoffman]
Related: Thanks, Textbooks, my new favorite Tumblr.
I have been able to look at the differences between the textbooks that our district bought and the CCSS textbooks by the same publisher. The only difference, other than Common Core stamped all over the cover, is that every time it used to say application it now says Common Core. They did not even fix some of the typos that were there from five years ago.