PROBLEMS 254
Programs and marks. The total school day. The class period.
Physiological fatigue. Conditions like fatigue. Practical precepts
based on study of fatigue. Administrative considerations controlling
length of the class period. Adjustment of work within the period.
Adjustment of credits. The problem of grading. Experiments with
grading systems. The study of marks as an introduction to a study of
the school system. Exercises and readings.