Lesson With Polygon Boards
pp. 65-67.
‘Some problems involved in the teaching of mathematics’
2 For the Teaching of Mathematics, Vol. II pp. 81 et seq.
‘Three dimensional vision and the use of the senses’
pp. 102 et seq.
‘The idea of dynamic patterns in geometry’
pp. 109 et seq.
‘Teaching mathematical films’
through
3 For the Teaching of Mathematics, Vol. III pp. 91 et seq.
‘Multivalent materials’
Animated Geometry Films All films are silent, 16 mm, black and white, 3 minutes run. * in color by J. L. Nicolet Three points determine one circle * Circles tangent to two concentric circles * Contact point of parallel tangents to circles * Subtended arc A given line seen at a given angle
67