Design Sketching
A design sketch is not an art contest. Its job is to make an idea understandable.
By the end of today, students can…
Build
objects from simple geometric forms.
Show
basic proportion and three-dimensional depth.
Present
a sketch that another person can interpret.
Most products can begin as boxes, cylinders, wedges, and lines.
Draw lightly first
Find the shape before darkening the final line.
Use long lines
Avoid building every edge from many tiny scratch marks.
Add detail last
Openings, joints, grips, and features come after the main form.
Front view only
Useful for shape, but depth may be unclear.
Simple 3D view
Shows width, height, depth, and how parts connect.
The goal is understandable structure — not perfect technical perspective.
Four short sketching rounds.
Forms
Boxes, cylinders, wedges.
Combine
Turn forms into familiar products.
3D
Show depth and structure.
Own object
Sketch one classroom product from observation.
Before adding more detail, ask three questions.
Shape
Can another person tell what the main form is?
Parts
Can they see which pieces connect?
Scale
Do the parts look reasonably proportioned?
Finish one sentence.
Next lesson
Students add annotations so a sketch explains function, materials, dimensions, and important features.