By CHRISTOPHER DREW
Published: January 7, 2011
WHEN Joan Carlson started teaching high school biology more than 30 years ago, the Advanced Placement textbook was daunting enough, at 36 chapters and 870 pages. But as an explosion of research into cells and genes reshapes our sense of how life evolves, the flood of new material has been staggering. Mrs. Carlson’s A.P. class in Worcester, Mass., now confronts a book with 56 chapters and 1,400 pages, along with a profusion of animated videos and Web-based aids that supplement the text.
And what fuels the panic is that nearly every tongue-twisting term and microscopic fact is fair game for the year-end test that decides who will receive college credit for the course.
“Some of the students look at the book and say, ‘My gosh, it’s just like an encyclopedia,’ ” Mrs. Carlson says. And when new A.P. teachers encounter it, “they almost want to start sobbing.”