which involve the measurement of the achievements of children and of
adults under varying conditions. Wherever possible, the relation between
the principle of teaching laid down and the scientific inquiry upon
which it is based is indicated.

Any careful study of the mental life and development of children reveals
at the same time the unity and the diversity of the process involved.
For the sake of definiteness and clearness, the authors have
differentiated between types of mental activity and the corresponding
types of classroom exercises. They have, at the same time, sought to
make clear the interdependence of the various aspects of teaching method
and the unity involved in mental development.

GEORGE DRAYTON STRAYER.
NAOMI NORSWORTHY.
NOVEMBER 15, 1916.

* * * * *




TABLE OF CONTENTS

I. THE WORK OF THE TEACHER

II. ORIGINAL NATURE, THE CAPITAL WITH WHICH TEACHERS WORK

III. ATTENTION AND INTEREST IN TEACHING