In class exercises
In class sketches of a mug, highlighting the parts that are most noticeable to touch.
Assignment
The following two sketches were of objects placed in a box, and chosen blindly. I selected an object, explored it by touch, and then returned it to the box before opening my eyes and beginning to draw. I recognized the first object (a portable speaker) for what it was immediately, but the second remained a mystery until after I had completed the drawing (the metal insert for the nose piece of a mask).