O NATURE STUDY LESSONS FOR PRIMARY GRADES 



hear well, do you think? Do your dogs hear well? 

 (Children relate their experiences.) What does your 

 dog do first when you call him? (Pricks up his ears.) 

 Why ? (So that he may catch all of the sound that 

 he can.) Can you prick up your ears? (Our ears 

 stand out so that we can catch the sound easily with- 

 out moving them.) Where does the sound which the 

 dog catches go? (Through the openings in the side 

 of his head.) Did you ever look into these open- 

 ings ? What is to hinder flies, bugs, dust, etc., from 

 going far into them ? (Shepherd dogs' ears droop 

 over these openings, and hair covers them largely.) 

 How is it with your ears? What keeps insects out? 

 Where on the dog's head do you find his ears? Are 

 they higher up or lower down than our own? How 

 many ears has he? Why does he need two? 



Tell now all you can about a shepherd dog's ears. 



But Prince sometimes could neither see nor hear 

 the sheep, yet he started off in the right direction. 

 How did he know where to go? He might have 

 remembered. But if he had not remembered, quite 

 likely he could have found them. Have you ever 

 seen a dog that was lost from his master? What 

 did he do? (Put his nose down close to the ground.) 

 Why? (To scent the tracks of his master.) Can 



