[Footnote 36: These ten lessons in this and succeeding grades are devoted to color perception only. Their application to design is a part of the general course in drawing, and will be so considered in the succeeding grades. Note that, although thus far nothing has been said about complementary hues, the child has been led to associate them in opposite pairs by the color sphere. (See Chapter III., p. 76.)] [[Error for “paragraph 76”]] _FOURTH GRADE LESSONS._ 1. Review sequence of three values in each of the five middle hues. 2. To recognize, name, match, imitate, and 3. find them on sphere and in objects. 4. Show FIVE VALUES of RED. Find them on large color sphere. 5. Number them 1, 3, 5, 7, 9. Match, imitate, and write. 6. Show FIVE VALUES of BLUE-GREEN. „ „ „ Treat as above and review. 7. Show FIVE VALUES of PURPLE-BLUE compared with Yellow. Treat as above and review. 8. Show FIVE VALUES of RED-PURPLE „ Green. Treat as above and review. 9. Show FIVE VALUES of YELLOW-RED „ Blue. Treat as above and review. 10. Show FIVE VALUES of GREEN-YELLOW „ Purple. Treat as above and review. _Aim._--To recognize sequences combining five values in each of ten hues. To name, match, imitate, WRITE, and arrange them. STUDY OF SINGLE CHROMAS AND THEIR SEQUENCES. Two Years. _FIFTH GRADE LESSONS._ 1. Review sequences of hue and value. Find them on the color sphere. Name, match, imitate, write, and arrange them by hue and value. 2. Teach use of term CHROMA. Compare three chromas with three values of red. Name them WEAK, MIDDLE, and STRONG chromas. Find in nature and art. 3. THREE CHROMAS of RED. Compare with three of blue-green. 4. Show COLOR TREE. Suggest unequal chroma of hues. 5. THREE CHROMAS of YELLOW. Compare with three chromas of purple-blue. 6. THREE CHROMAS of GREEN. „ „ red-purple. 7. THREE CHROMAS of BLUE. „ „ yellow-red. 8. THREE CHROMAS of PURPLE. „ „ green-yellow. 9. Arrange five middle hues in circle, described as on the surface of the Color Sphere (middle chroma), with weaker chromas inside, and stronger chromas outside, the sphere. 10. Review,--to find these sequences of chroma in nature and art. _Aim._--To recognize sequences combining three chromas, middle value, and ten hues. To name, match, imitate, and arrange them. _SIXTH GRADE LESSONS._