In 1986 my younger daughter Nomi was born.
That year I took a sabbatical from teaching and went to school to learn about using computers in the classroom.
I arranged my schedule so I went to all my classes on Thursday. All the other days I took care of Nomi.
Her mother worked full time. I met Jeff Wang in one of these classes, and he took the following photos one day for my use in promoting string figure studies. Some have names, some have formulas, some have descriptive references.