Journal of the Mathematics Council of the Alberta Teachers’ Association
Volume 28 Issue 2, August 1990
23 – 27
Rational Number Sense: Development and Assessment
James Vance
The development of number sense is one of the important objectives of mathematics today. Leutzinger and Bertheau define number sense as “sound judgment about the approximate quantity represented by a number” (1989). Children who possess number sense can form a mental image of a number and see relationships between numbers.