_Aim._--To BALANCE colors by area, hue, value, and chroma. To imitate with pigments and write the balance by the notation. _NINTH GRADE LESSONS._ 1. Review balance of color pairs, by area, hue, value, and chroma. 2. To recognize, name, imitate, write, and record them. 3. SELECTION of two colors to balance a given RED. 4. „ „ „ „ YELLOW. 5. „ „ „ „ GREEN. 6. „ „ „ „ BLUE. 7. „ „ „ „ PURPLE. 8-10. TRIAD of color, selected, balanced, written, and used in design. _Aim._--To recognize triple balance of color, and express it in terms of area, hue, value, and chroma. Also to use it in design. GLOSSARY OF COLOR TERMS TAKEN FROM THE _CENTURY DICTIONARY_. GLOSSARY _The color definitions here employed are taken from the Century Dictionary. Special attention is called to the cross references which serve to differentiate HUE, VALUE, and CHROMA._ AFTER IMAGE.--An image perceived after withdrawing the eye from a brilliantly illuminated object. Such images are called positive when their colors are the same as that of the object, and negative when they are its complementary colors. BLUE.--Of the color of the clear sky; of the color of the spectrum between wave lengths .505 and .415 micron, and more especially .487 and .460; or of such light mixed with white; azure, cerulean. BLACK.--Possessing in the highest degree the property of absorbing light; reflecting and transmitting little or no light; of the color of soot or coal; of the darkest possible hue; sable. Optically, wholly destitute of color, or absolutely dark, whether from the absence or the total absorption of light. Opposed to white. BROWN.--A dark color, inclined to red or yellow, obtained by mixing red, black, and yellow. +CHROMA.--The degree of departure of a color sensation from that of white or gray; the intensity of distinctive hue; color intensity.+ CHROMATIC.--Relating to or of the nature of color. COBALT BLUE.--A pure blue tending toward cyan blue and of high luminosity; also called Hungary blue, Lethner’s blue, and Paris blue. COLOR.--Objectively, that quality of a thing or appearance which is perceived by the eye alone, independently of the form of the thing; subjectively, a sensation peculiar to the organ of vision, and arising from the optic nerve. COLOR BLINDNESS.--Incapacity for perceiving colors, independent of the capacity for distinguishing light and shade. The most common form is inability to perceive red as a distinct color, red objects being confounded with gray or green; and next in frequency is the inability to perceive green. COLOR CONSTANTS.--The numbers which measure the quantities, as well as any other system of three numbers for defining colors, are called constants of color.