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FOURTH GRADE. 



SEPTEMBER. 



PLANTS. 



Each pupil select tree for systematic study throughout the year. 

 Protective coloration of leaves and fruit; development of flowers into 

 fruit; form of fruit fleshy, stone, dry. 



Lower forms of plant life algae, fungi, and lichens. 



ANIMALS. 



Swamp life. Observe larval stage of insects. Compare clam and 

 oyster, as to food, habits, structure, movements, protection, nature 

 of shell. 



MINERALS. 



Character of soil formed in swamps and marshes. Relate to peat 

 bogs. 



ELEMENTARY GEOGRAPHY. 



Magnetic needle; compass; construction and use. Relate to iron 

 and steel. 



Dissolve, salt, alum, lime in wa'ter. Relate solution to erosion of 

 rock, and lime in solution to shells and bones of animals. 



Daily record of day, date, frost or dew, clouds or fogs, rainfall, 

 temperature, barometer, sunrise, sunset, morning star, evening star, 

 moon's phases, moonrise, moonset. 



Measure slant of sun's rays on shadow stick. Autumnal Equinox, 

 September 21; path of sun, Mars, Mercury. 

 



NOTE. Systematic study for trees following outline for tree study. Environ- 

 ment, shape, parts. 



Observe fallen leaves exposed to the air, and those in streams or ponds. 



Prepare a self-sustaining aquarium, showing the co-operation of animal and 

 plant life. 



In this grade pupils should get a glimpse of the evolution of plants and animals 

 and their interdependence. 



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