Learning Progression “C”: Physical Science, Engineering and Technogy Science Education for the Early Grades › Forums › Volume One › Learning Progression “C”: Physical Science, Engineering and Technogy This category has 38 topics, 23 replies, and was last updated 2 weeks, 2 days ago by Tilden. Forum Topics Posts Last Post Lesson C-1. Concepts of Energy I: Making Things Go 7 23 5 months, 3 weeks ago Tilden Lesson C-2. Sound, Vibrations, and Energy 8 9 3 years, 6 months ago Bernard Nebel Lesson C-3. Concepts of Energy II: Kinetic and Potential Energy and the Flow of Energy 5 8 3 years, 6 months ago Bernard Nebel Lesson C-3A. Energy and Force 3 3 3 years, 6 months ago Bernard Nebel Lesson C-4. Concepts of Energy III: Distinguishing Between Matter and Energy 3 4 3 years, 3 months ago Bernard Nebel Lesson C-5. Inertia 4 5 2 weeks, 2 days ago ANJN Lesson C-6. Friction 4 4 3 years, 6 months ago Bernard Nebel Lesson C-7. Push Pushes Back 4 5 3 years, 6 months ago Bernard Nebel