362 NATURE-STUDY REVIEW (10:9— Dec, 1914 



Third Grade 

 Purposes 

 Those already stated plus that of allowing more prolonged study 

 of fewer topics, under more careful control and better record of 

 resiilts, with more individual effort. 



Projects 

 Keep aquaria with same living things as in second grade plus 

 any available new forms; if possible use same aquaria as used in 

 second grade ; in connection with cooking study evaporation from 

 fruits and from water; individual gardens or subdivided group 

 gardens ; care of the currant bushes ; grow silk moth through life 

 cycle and prepare illustration of life round; grow cecropia moth 

 and cabbage butterfly through life round; grow bulbous plants 

 and make special study of them. 



Materials 



Plants — Collect garden seeds from last spring's garden; fruits 

 for experiments in evaporation; review and add new trees; learn 

 to know common weeds; bulbs of narcissus, daffodils, tulip, 

 crocus, scilla, freesia, amaryllis, these bulbs planted in pots out-of- 

 doors, those indoors used as basis of experiments in time and rate 

 of growth under various conditions; amount of plant material 

 produced ; this grade emphasizes bulb work all fall and winter. 



Animals — Birds — gold finch, oriole, scarlet tanager, song spar- 

 row, indigo bunting, brown creeper, nuthatch, rose-breasted gros- 

 beak, kingfisher, cow bird; silk moth life cycle, also cecropia and 

 cabbage butterfly ; learn to know several common butterflies and 

 moths from museum specimens. 



Physical Materials — Soil studies in connection with evaporation 

 and also in connection with bulbous plants ; measure gardens and 

 determine amount and distribution of material to be planted ; blue 

 prints of leaves of common trees — this serving as a review of trees. 



Fourth Grade 



Purposes 



As the third grade work deals more largely with life-round 



processes in plants and a few insects, the fourth grade deals with 



less easily studied insects and other animals, and with individual 



