412 APPENDIX 



Eleventh week. Upward Course of Materials in the Stem. Demonstration 

 of pea seedlings with eosin to show above. Demonstration of evaporation of 

 water from a leaf. Action of stomata in control of transpiration. Cellular 

 structure of leaf. Demonstration of elodea to show cell. 



Twelfth week. Sun a Source of Energy. Heliotropism. Demonstration. 

 Necessity of sunlight for starch manufacture. Necessity of air for starch 

 manufacture. By-products in starch making. Oil manufacture in leaf. 

 Protein manufacture in plant. Respiration. 



Thirteenth week. Reproduction. Necessity for (a) perpetuation, (h) regenera- 

 tion. Study of a typical flower to show sepals, petals, stamens, pistil. 

 Functions of each part. Cross and longitudinal sections of ovary shown 

 and drawn. Emphasis on essential organs. Pollination, self and cross. 

 (Note. At least one field trip must be planned for the month of May. This 

 trip will take up the following topics : The relations between flowers and 

 insects. The food and shelter relation between plants and animals. Recog- 

 nition of 5 to 10 common trees. Need of conservation of forests. An 

 extra trip could well be taken to give child a little knowledge and love for 

 spring flowers and awakening nature.) 



Fourteenth week. Study of the Bee or Butterfly with Reference to 

 Adaptations for Insect Pollination. Study of an irregular flower to 

 show adaptations for insect visitors. Fertilization begun. Growth of 

 pollen tubes. 



Fifteenth week. Fertilization Completed. Use of chart to show part played 

 by egg and sperm cell. Ultimate result the formation of embryo and its 

 growth under favorable conditions into young plant. Relation of flower and 

 fruit, pea, or bean used for this purpose. Development of fleshy fruit. Apple 

 used for this purpose. 



Sixteenth week. Maturing of Parts and Storing of Food in Seed and Fruit. 

 The devices for scattering the seeds and relation to future plants. Resume 

 of processes of nutrition to show how materials found in fruit and seed are 

 obtained by the plant. 



Seventeenth week. Plant Breeding. Factors : (a) selective planting, (h) cross- 

 pollination, (c) hybridizing. Heredity and variation begun. Darwin and 

 Burbank mentioned. 



Eighteenth and nineteenth weeks. The Natural Resources of Man : Soil, 

 Water, Plants, Animals. The relation of plant life to the above factors of 

 the environment. The relation of insects to plants (forage and other crops) 

 and the relation of birds to insects. Need for conservation of the helpful 

 factors in the environment of plants. Attention called to some native birds 

 as insect and wood destroyers. 



Twentieth week. Review and Examinations. 



Second Term 



First week. The Balanced Aquarium. Study of conditions producing this. 

 The r61e of green plants, the role of animals. What causes the balance. 

 How the balance may be upset. The nitrogen cycle. What it means in the 

 world outside the aquarium. Symbiosis as opposed to parasitism. Ex- 

 amples. 



