I got curious about Pearson when I saw this article on how we still have the same Texas Instruments calculators that we had in schools 20 years ago. Part of that problem is because they are still in our textbooks and part of that, to be truthful, is that teachers hate changes (even in a difference in page numbers) in their textbooks.
The video above is an excellent one on the history of Pearson and the attacks it takes from both the left and right. It is an $8 billion company that is behind most our state tests. It does have some redeeming features such as online classes, good textbooks, etc., but it also continues to pursue cheap multiple choice tests rather than project based ones that are more expensive, yet better preparation for life beyond K-12. (Did you know the pencil and standardized learning were invented the same year - more in my book on that). Really we should be asking why our state exams are really exercises in Googling and not higher level thinking pieces. To wit, the tests do drive our instruction. Create project based end of the years assessments and you'll get more throughout the year. Create end of the year multiple choice exams and you'll get more during the year and don't even get me started on the awful statistical practices that this has spawned!
At any rate it is always good to learn about "the forces" behind our legislative decisions. In our state, for example, we have cut some year end tests, but it is bad form for Pearson to lose more of them and you can bet its lobbying arm is fighting more (and more here and here).
To wit, here is a great Politico article on Pearson and here is another recent one from Fortune. Please take the time to look at these resources and get involved with your state and locally elected officials and ask them when our testing will start reflecting the changes in our society instead of the world one hundred years ago when we first saw the dawn of standardized testing.