THIRD GRADE. 



SEPTEMBER. 



PLANTS. 



Eelate growth of twigs on north, south, east and west 

 side of trees to symmetrical development of tree. Study 

 pine — type of excurrent tree, fruit tree — ^type of deliques- 

 cent tree. Note color of leaves on different parts of tree. 

 Relate coloration of seed to distribution by animals as 

 food, bj' animals in covering, by wind. 



ANIMALS. 



Distinguish between vertebrated, molluscous, articu- 

 lated and radiated animals. Food, homes, and means of 

 protection. Use familiar examples of each — bird or fish, 

 oyster or clam, insects, starfish, etc. Review and classify 

 animals previously studied. 



MINERALS. 



Compare sandstone and limestone. Sedimentary rock. 

 Bed rock in parts of Michigan. 



ELEMENTARY GEOGRAPHY. 



Evaporation; dew, frost, rain. 



Daily record of day, date, direction of wind, clouds or 

 fogs, rainfall, temperature, barometer, moon's phases, 

 morning and evening stars. 



Rotation and revolution of the earth; inclination of axis; 

 day and night; change of seasons; Autumnal Equinox; 

 Little Bear, Jupiter, and Venus. 



NOTE.— Emphasize geology in this grade, and do as mncli field 

 work as possible. Take advantage of any natural features in 

 the vicinity of the school house. 



