Function as Spreadsheet Cell
Representation
http://www.staff.science.uu.nl/~jeuri101/homepage/
Johan is a professor of Software Technology for Learning and Teaching at the department of Information and Computing Sciences of Utrecht University. His main research interests are related to developing systems that help students when learning to solve tasks in domains such as programming, mathematics, logic, and more.
A notional machine is a pedagogic device to assist the understanding of some aspect of programs or programming.
