METHODS OF TEACHING 



337 



seed, the size and the condition and character of soil. Sn;iiill . 

 seeds are planted very shallow and large seeds much deeper. 

 Greater depth of planting is practised in sandy soil than in clay 

 soil. When soil is dry the seed must be planted deeper than 

 when it is wet. Such instruction is best given to the children 

 at planting time (Fig. 160). 



The term " drill," with reference to method of planting 

 seeds, means the distributing of the seeds in a small mark or . 

 furrow. This method may be applied as thin drills and thick- 



Fig. J60.— Primary pupils planting radish seeds. (RitteDhouse School Gardens.' 



or close drills. Peas are usually planted in thin drills and 

 lettuce in thick drills. 



The term " hills " refers to the planting of seeds in clusters 

 or groups at regular intervals in the garden. Corn is fre- 

 quently planted in "hills." (See table, Chapter XVIII.) 



In the garden work it is better with small children to- use 

 vegetables that mature in one season or even in a few weeks. 

 Later on perennials may be used. Quick results are most in- 

 teresting to small children. Try such crops as lettuce, radish, 

 peas, turnips, onions, beans, early corn, summer squash, toma- 

 toes, and cabbage. It is usually best to omit field crops at 



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