Learning Progression “D”: Earth and Space Science Science Education for the Early Grades › Forums › Volume One › Learning Progression “D”: Earth and Space Science This category has 55 topics, 16 replies, and was last updated 3 months, 3 weeks ago by Tilden. Forum Topics Posts Last Post Lesson D-1. Gravity I: The Earth’s Gravity; Horizontal and Vertical 6 6 3 months, 3 weeks ago Tilden Lesson D-2. Day and Night and the Earth’s Rotation 5 5 10 months, 3 weeks ago aepstein83 Lesson D-3. Reading and Drawing Maps 5 5 10 months ago aepstein83 Lesson D-3A. North, East, South, and West 5 6 6 months, 1 week ago Bernard Nebel Lesson D-4. Land Forms and Major Biomes of the Earth 4 4 1 year, 2 months ago SciBeams5 Lesson D-5. Time and the Earth’s Turning 3 6 10 months ago Bernard Nebel Lesson D-6. Seasonal Changes and the Earth’s Orbit 7 11 3 years, 2 months ago Bernard Nebel Lesson D-7. Gravity II: Rate of Fall; Weightlessness in Space and Distinction Between Mass and Weight 8 12 4 months, 3 weeks ago nidhiamit92 Lesson D-8. Rocks and Fossils 10 14 1 year, 2 months ago sheeb Lesson E-1. Resources: Developing an Overview 2 2 2 years, 11 months ago Bernard Nebel