Untitled (notes, left page); Untitled (calculations and notes, right page)

Graphite on envelope

Graphite with blue and yello crayon on paper

Black crayon on tan wove paper

Colored marker on paper

Mixed media

Crayon on paper

Colored crayons on paper

Graphite on paper

Graphite on paper

Colored marker on paper

Black crayon on paper

Colored marker on paper