This diagram represents a student's thinking and progress in math. The image on the left is concrete…
"The Benday process, so called, is the use of mechanical appliances for adding lines or stipples to…
Enlarged portions of a half tone print, showing light, medium, and dark tints.
A heraldic shield made of or (gold), which is represented by engraving dots of pricks into the shield.
Dotting pen is used to create five different dotted and dashed lines. The dot lengths can be varied…