Digital textbooks are coming! Read about California’s attempts to develop open-source (free textbooks) at
http://en.wikipedia.org/wiki/California_Open_Source_Textbook_Project.
You can find free downloads of the following books at this site: www.ck12.org/flexr/.
Featured Flexbooks are Life Science, 21st Century Physics, Earth Science, Geometry, Calculus, Probability and Statistics, Calculus, Trigonometry, and Chemistry.
Coming this fall are Middle School Math – Grade 6, Middle School Math – Grade 7, Earth Science – Middle School, Life Science – Middle School, Basic Algebra, Basic Geometry, Basic Probability and Statistics – A Full Course, Algebra I – Second Edition, Geometry – Second Edition, Advanced Probability and Statistics – Second Edition, Earth Science – High School, Biology, Chemistry – Second Edition.
Check them out, math and science teachers.
