This article presents a way of studying the rationality that mathematics teachers utilize in managing the teaching of theorems in high-school geometry. More generally, the study illustrates how to ...

THIS volume is in continuation of the subjects treated in parts i. and ii. by the same authors; these were reviewed in NATURE of February 9, 1911. The mathematical part of the present volume comprises ...

THE Practical Geometry by Messrs. Le Neve Foster and Dobbs consists of a collection of more than seven hundred examples, grouped in sets, each set illustrating some fundamental geometrical principle, ...