Excerpt from Color in the School-Room: A Manual for Teachers
In teaching color to young children there is a great difference of opinion as to methods, just as there is a difference of opinion regarding all other branches of education at the present time. Indeed, color teaching as a systematic branch of primary education is in its infancy, consequently each educator with positive ideas on the subject ought to give a fair consideration to the opinion of all others who have experience in general education and interest enough in this branch to devote to it any considerable thought.
In teaching color two things at least are necessary. First, we must have some standard to which we can refer all colors. Second, we must have some nomenclature by which colors can be known and referred to. In the spectrum are an infinite number of hues, six of which at least are well separated from each other and by general agreement are accepted as natural standards: Red, Orange, Yellow, Green, Blue and Violet. With these six colors either in pigments or in colored lights we may very easily imitate the intermediate hues of the spectrum. Therefore, having these six colors established and named, if we can mix two of them in a definite proportion of each and record this mixture in mathematical terms, we secure a nomenclature for the intermediate hues and other combinations. If the proportions used in combinations could be determined by the measurement or weight of the pigments employed there might have been in use, ages since, some accepted nomenclature, but no argument is necessary to prove that we cannot establish the hue of a compound color by either weighing or measuring the pigments used to produce it.
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