A beginner-friendly path through variables, change, terrain, and spatial systems.
Textbook Part
This part builds the mathematical language of the book in a way that stays close to geographic questions. The goal is not abstract school maths for its own sake. The goal is to understand change, surfaces, gradients, distance, and interaction across space.
These chapters build the habits the rest of the project depends on: defining quantities carefully, noticing how they change, and turning geographic questions into models that can be tested.