24 MANUAL OF NATURB STUDY. 



3. — Lessons on Teeth. 



1 . Have the children examine the cat's teeth at 

 home. a. As to number, b. As to kind, whether 

 long or short, blunt or sharp, c. As to use, how 

 the cat eats its food. d. Are the cat's teeth filthy 

 and decayed? Do they ever need to be filled? 

 Does the cat ever have toothache? 



2. For another lesson get reports from the 

 children in regard to the dog's teeth, comparing 

 every point with that of the cat. 



3. A third conversation may be based upon the 

 horse's teeth. His manner of eating. What he 

 eats, different kinds of teeth, color, etc. Tell the 

 children to throw a piece of meat to the dog, a hand- 

 ful of oats to the horse and an ear of corn to the 

 cow and watch them eat. Are the teeth fitted in 

 each case for the work they have to do? Why do 

 they not feed oats to the dog, and meat to the 

 horse? Do horses, cows and dogs often have the 

 toothache? I wonder why. 



4. For a fourth conversation the children may 

 now be interested in their own teeth, a. As to 

 number, b. As to kind, temporary and permanent. 

 c. How many are like the dog's teeth? How many 

 like the "horse's teeth? Then can a boy bite like a 

 dog and also grind or chew like a horse ? What 

 food can a boy eat ? Will a dog eat every kind of 



