I make sure my students are sitting directly in front of what they are
drawing.
I also have a list of "Observational Drawing Cmmmandments" on chart paper
that I made and we went over, like looking at the object 80% and looking "down"
20%, etc. They do detailed contour drawings of their book-bags on
mini-easels on the desk.
They find that when I walk around and say "where is that in your bookbag?"
or "where is that in your drawing?"
Not sure if this helped......
Does anyone have a handout that might help introduce shading? What are the
best artists to use as reference?