NECESSARY.--There are many
reasons for dividing an instruction card in the present standard
way, namely,--

(a) to reduce the amount of time study observation
necessary to be taken,
(b) to reduce the difficulties of synthesizing the time
studied element,
(c) to locate quickly just where the worker needs help and
instruction to enable him to achieve his task,
(d) to keep up the interest of the worker by having short
time elements with which to measure his relative
ability,
(e) to present the subject-matter of instruction in such
natural subdivisions that resting places are
automatically provided that allow the mind to recover
from its absorption of each subdivision. This provides
definite stopping places between co-related units of
instruction holding the attention as a complete unit
against distraction, and a complete resting place
between subdivisions that permits the mind to relax and
wander without losing complete grasp of each unit as
a whole.

DETAILED INSTRUCTION EDUCATIVE.--The greater the perfection of
the detail of the instruction card, the greater the educative value
of this plan of management. The educative value of the instruction
card will be discussed at length under Teaching.

Those inexperienced in Scientific Management have complained
that the detail of Instruction Cards and other parts of Scientific
Management is tiresome. Dr. Taylor has answered such objectors in
Discussions, and also in his own directions for planning the
Instruction Card, which are to be found in "Shop Management."

The advantages of the detailed instruction card are more than
might appear on the surface. Not only does the man whose attention
is easily distracted keep to his work better if he is told every
possible detail, but also the cards when filed can be taken out
again, and every detail and item of the method reviewed at length
and revised if necessary.

The experienced worker who gets to know the instruction by rote
is not bothered by extreme detail. On the contrary, he grasps it at
a glance, and focuses his mind upon any new feature and upon the
speed and exactness of muscular action needed for compliance with
the card.

LANGUAGE OF INSTRUCTION CARD IMPORTANT.--The language in which
instructions and commands are transmitted o