This document discusses three topics for middle/high school teachers: 1) Achieving teacher buy-in and inviting collaboration, 2) Teaching critical thinking and research skills, and 3) Specific instructional approaches for STEM disciplines. For the first topic, it suggests identifying supportive teachers, taking incremental steps, and providing structure for collaboration. For critical thinking, it emphasizes skills like discernment, evaluation, and synthesis to develop higher-order thinking. For STEM, it recommends problem-based learning using real-world problems, and scaffolded lessons building skills over time with a common theme.