AUSTIN (March 27, 2009)--Texas will no longer require educators to teach weaknesses of all scientific theories, including evolution under new rules approved Friday by the State Board of Education in a 13-2 vote on new state science curriculum standards that will be in place for the next decade.

But in a compromise plan, teachers will be required to have students scrutinze "all sides" of scientific theories, a move criticized by evolution activists.

The vote capped a week of impassioned debate that had scientists, teachers and textbook publishers from around the country focused on Texas.