How this type works
Imagine the paper folded. A punch goes through every layer. Unfold in your head and count the holes.
Example. Fold once (two layers) and punch once → two holes when opened.
Room: Figure analysis
Imagine the paper folded. A punch goes through every layer. Unfold in your head and count the holes.
Example. Fold once (two layers) and punch once → two holes when opened.
Room: Figure analysis