4O NATURE STUDY LESSONS FOR PRIMARY GRADES 



You have said that the sheep and cow are 

 unlike in size, and wear different kinds of coats. 

 If the sheep were the same size as the cow and 

 wore the same kind of a coat, could you tell them 

 apart? (Not many sheep have horns.) Do all cows 

 have horns ? (Many have none.) Could you tell 

 them apart by the looks of their horns? Look at 

 the sheep with horns and the cow with horns and see. 

 (The cow's horns are round, quite smooth, and 

 pointed. They usually start out from the head in 

 opposite directions, then curve inward and forward 

 so it can hook with them.) [Children show by draw- 

 ing at the board.] The sheep's horns grow back- 

 ward and downward, often forming a curl. They 

 are not round, and are rough. [Children draw a 

 sheep's head to show how its horns look.] Can you 

 think why it is well that the sheep's horns do not 

 stand out in front of its head ? (Sheep crowd close 

 together in the fold at night, or when frightened, 

 and sharp-pointed horns such as the cow has would 

 be apt to injure other sheep.) 



How can sheep keep away their enemies with 

 such horns, or no horns at all, as in most cases ? 

 [Children relate any experience of their own, or such 

 as they have heard, of the terrible blow given by 



