This document outlines strategies and concepts for developing higher-order thinking skills in 21st century learners. It discusses revisiting Bloom's taxonomy, developing metacognition, and applying Torrance's concepts of problem solving and creativity. Some specific strategies mentioned include using graphic organizers, teaching problem solving methods, encouraging creative thinking through activities like mind movies, and teaching question-answer relationships. The document emphasizes developing fluency, flexibility, elaboration, and originality in student thinking.