When Will We Learn...
The text does not start with a review of arithmetic. to do so would be a flagrant violation of what psychology teaches about the doctrine of interest in education. The pupils for who this course is designed have been surfieted with such reviews; they need the stimulus of attacking something that is new. The futility of trying to develop skill in computing by mere reviews has been demonstrated by these very pupils. Adequate skill in computation can be secured while the pupils are having new and worthwhile mathematical experiences.
Walter Hart & Cottell Gregory
Preface to high school text
Socialized General Mathematics, 1937