3. The Hierarchy of mathematical Ability
A. The Hierarchical View of Mathematical Ability
General intelligence has been regarded by psychologists as a fixed, inborn mental power, as the following quotation from Schonell shows.
General intelligence may be defined as an inborn, all -round mental power which is but slightly altered in degree by environment although its realization and direction are determined by experience.
(Ramsey and Hickories,1960,page 24)