The Mathematical Gazette: Volume 31 -

On Certain Configurations of Congruent Triangles
D. G. Taylor
Published online by Cambridge University Press:

03 November 2016, pp. 270-278
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It is proposed to consider all triangles congruent with a given triangle and having their vertices on the sides (or sides produced) of the given one with the various alternative allocations of vertices and sides; and, conversely all triangles congruent to a given one, but whose sides (or sides produced pass through the vertices of the given one, again with the various allocations

A Chain Rule for use with Determinants and Permutations
N. Chater, W. J. Chater
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03 November 2016, pp. 279-287
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To introduce the proposed rule we make use of it to settle the signs of terms in the expansion of determinants such as :
where the symbol for the element has superscript r denoting rows and subscript s denoting columns.

1984. A Special Case of the General Theorem of Maxima and Minima of n Restricted Variables
L. R. B. Ehrenberg
Published online by Cambridge University Press:

03 November 2016, p. 238
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Mathematics and the Child
C. Gattegno
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03 November 2016, pp. 219-223
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When teachers consider the problems of mathematics in the school they recognise that they have to make a definite effort to simplify the study of these difficult questions, but, it seems to me, they work in a frame which is imposed by the curriculum and their temptation is to think very little of the child. The problem, however, has to be faced as a whole and the aim of this article is to discuss the teaching of mathematics with special reference to a child-centred point of view.

The Mathematical Gazette