Amogh N P
✦ In loving memory of Amogh N P — Architect · Designer · Visionary ✦
Speculative Drawing: Thinking on Paper — Working in series, overlaying trace
Lesson 14Module 3 · Design application

Speculative Drawing: Thinking on Paper

Working in series, overlaying trace

3 hours studio

Learning objectives

By the end of this lesson, students will be able to:

  • Use rapid, low-stakes sketching to generate and test multiple design ideas rather than perfecting one.
  • Practise productive habits of design sketching: working in series, overlaying trace, tolerating ambiguity, and exploiting accidents.
  • Switch fluidly between drawing systems mid-thought — plan to axon to perspective — as the idea demands.
  • Maintain a visible trail of thinking that can be reviewed and resumed.
Trace-overlay stack — four generations of one idea 1 first try 2 entry added 3 core + split 4 resolved Each sheet keeps what works from the layer beneath and edits only what fails. The ghost (dashed) shows the prior generation under the new.
DiagramA trace-overlay stack showing four generations of one idea.
One scheme, three systems — switching mid-thought a plan — horizontal cut N b axonometric — 30° plan-oblique 30° 30° c perspective — eye-level vignette horizon = eye height VP head on horizon Same scheme each time. Switching system reveals a different question: the plan asks "how does it work?", the axon "how does it stack?", the perspective "how does it feel to stand here?"
DiagramOne scheme as plan, axon, and perspective vignette.
Twelve genuine thumbnails for one brief — including weak ones.
PhotoTwelve genuine thumbnails for one brief — including weak ones.
A designer's desk mid idea-sprint: trace, markers, coffee ring and all.
PhotoA designer's desk mid idea-sprint: trace, markers, coffee ring and all.
A desk mid-idea — trace, markers, mess.
ReferenceA desk mid-idea — trace, markers, mess.

Key concepts

  • Speculative drawing is cheap experimentation: ten loose options outperform one polished guess.
  • Trace-paper overlays as design memory: each layer keeps what works and revises what does not.
  • Ambiguity as fuel — a wobbly line can suggest three ideas a precise line cannot.
  • Quantity breeds quality: deferring judgment during generation, applying it during selection.

In-class activities & exercises

Idea sprints (40 min)A one-room reading pavilion for a park; students must produce twelve thumbnail options in forty minutes, no erasing allowed.
Overlay evolution (50 min)Pick the strongest thumbnail and develop it through four trace overlays, each changing exactly one thing.
System switching (40 min)Express the current scheme in three systems on one sheet — plan diagram, quick axon, eye-level sketch.
Accident harvest (30 min)Students exchange a 'failed' sketch with a partner who must find and develop an idea hidden inside it.

Worked example sketches

How the technique looks in practice — loose, hand-drawn examples. Scroll to watch each one draw in; click to zoom.

Twelve thumbnails — a small reading pavilion 1 2 3 4 5 6 7 8 9 10 11 12 go wide and fast first — quantity loosens the hand and surfaces the better ideas
DiagramTwelve thumbnail options for a reading pavilion, no erasing.
Four trace overlays — one change per layer 1 base box 2 + pitched roof 3 + veranda 4 + raised plinth trace forward: keep what works (in ink), test one new move per sheet (in terracotta)
DiagramFour trace overlays evolving one scheme, a change per layer.
One idea, three ways — plan, axon, vignette plan N axon vignette test one idea across three views — each catches problems the others hide
DiagramOne idea expressed at once as plan, axon and eye-level vignette.
Accident harvest — finding a building in a scribble 1 — a scribble, no intention ...a roof? harvest 2 — the idea, drawn out don't aim — make marks, then look hard for the form already hiding in them
DiagramAn accident harvest — an idea found inside a loose scribble.

Homework / studio assignment

Continue the pavilion: one more overlay generation (four sheets) plus a half-page note on which decisions survived and why.

Assessment

Assessed on quantity, variety, and visible evolution across overlays — not on rendering quality.