Two and Two Make Zero: The Counting Numbers, Their Conceptualization, Symbolization, And Acquisition

Two and Two Make Zero seeks to decrypt children s acquisitionof numerical concepts by considering this subject from a variety of perspectives, namely, numbers mathematical and conceptual properties, methods of number application in the physical world, the mental processes involved in number perception and cognition, the function, logic, and history of number symbolization, number origin, and children s cognitive development.
Researched and written from a teacher s viewpoint, this work aims ultimately to improve elementary mathematics instruction by creating a better understanding of these irreducibly simple, but often misunderstood, concepts.

The author is a former elementary-school teacher who specialized in teaching remedial arithmetic as well as enrichment mathematics. She holds a teaching certificate from Oranim-teachers' seminar in Israel, and an Ed.M. in Early Childhood from Boston University.