SECOND GRADE FALL WORK 89 



wards verifying by the thermometer, until their temperature 

 sense becomes more accurate. In a similar way begin 

 with cold water and change its temperature by adding hot 

 water, letting the pupils judge each time. 



In ordinary use the thermometer should be hung where 

 it will test the average temperature of the air out of doors, 

 and should be read each day one or more times by the pupils 

 at regular hours, and the temperature recorded or expressed 

 graphically upon the blackboard, so that the gradual changes 

 may be noticed as the seasons advance. 



LESSON XII 

 GENERAL STUDY OF TREES 



Ask each pupil to select four or five trees and shrubs near 

 his home or the school, to study during the entire year. 

 Occasionally spend a recitation period in calling for reports 

 of changes observed. The teacher should set herself the 

 same task; she will learn as much, perhaps, as her pupils. 

 The trees selected should be different in their habits of 

 growth; e.g. a cottonwood, chestnut, locust, a fruit tree, an 

 evergreen, a wild shrub, and a climbing vine. 



The following are some of the points that should be ob- 

 served: difference in shape, masses of foliage, relation of 

 trunk and branches, any changes in color, development of 

 fruit or seed, the season's growth, the falling of the leaves, 

 formation and protection of buds, winter appearances, 

 bursting of buds, location of largest buds, dormant buds, 

 periods of greatest growth, influence of the weather, etc. 



As a language lesson, the pupils may write a description 

 of the trees being studied. As a lesson in art, they may 



