MINERALS. 



Effect of rain upon soil. Transporting power of a stream of rapid 

 and slow velocity. Effect of stream carrying sediment and one 

 which does not. Relation of hardness of minerals to erosion. 



ELEMENTARY GEOGRAPHY. 



What isotherm passes through Detroit. Compare this with Oc- 

 tober. Compare temperature and rainfall with October. 

 Compare force of sunbeam in Detroit with December. 



NOTE. Pupils should observe forces acting about them, and should be led to 

 see the great sculpturing of the face of Nature produced by same forces acting 

 on a greater scale. Relate hardness of rock to resistance to erosion. 



MAY. 



PLANTS. 



Compare flowering and flowerless plants; flowers and spore cases. 



ANIMALS. 



Study May fly egg deposited in water, long larval period, nymph, 

 adult. Compare parts with other insects. 



MINERALS. 



Pupils should be encouraged to make field excursions, to collect 

 and classify minerals studied during the year; to verify by observation 

 facts learned about erosion and sedimentation. 



ELEMENTARY GEOGRAPHY. 



Variation of sun's rays indicated by shadow stick: changing angle 

 of sun's rays (indicated by shadow on stick changing) to horizon; 

 effect upon temperature and life. 



NOTE. In early spring pupils should be encouraged to go to the woods and 

 fields and enjoy the beauty of Nature in its entirety. Discourage any careless 

 plucking and destroying of flowers, birds, insects, or life of any kind. 



JUNE. 

 PLANTS. 



Continue study of flowers and planls. Follow outline. 



