Sources of Books and Materials on Critical Thinking Benchmarks Online http://www.project2061.org/tools/benchol/bolframe.htm Benchmarks for Science Literacy, answers the question of what constitutes adult science literacy, recommending what all students should know and be able to do in science, mathematics, and technology by the time they graduate from high school. Critical Thinking Books and Software: http://www.criticalthinking.com/index.jsp