While rekindling an idea for one of the numerous designs of a courtyard house I am working on, I wanted to use a model sketching technique ( that involves folding paper to rapidly create an object in three dimensions.

Model sketching, Part 4. After rereading my blog Architectural Education: A question of section. Part 2, I located drawings of that undergraduate project, as well as a collaborative sketch between one of the students and myself created during a desk critique. The three drawings (Image 1, below) show a progression by the student following my suggestion to focus on a detail, which pushed the project forward with more precision and clarity.