148 NATURE-STUDY REVIEW [11:3— Mar., 1915 



Problems — 



Which is the best method of heating our homes? 

 Which system of heating gives the best ventilation? 

 What are some of the things that spoil pure air? 

 How is our schoolroom ventilated? 

 How is your home ventilated? 

 How may we get fresh air in our sleeping room? 

 How does the thermometer enable us to tell the temperature of our 

 rooms? 



3. Clothing; protecting the body. 



Different kinds of materials used, sources, method of making 

 clothing from each ; shoes and rubbers. 

 Problems — 



What kind of material makes the best clothing? 



Thru what changes does each kind pass from its source till it is made 



into clothing? 

 What points that effect health should be considered when buying 

 shoes? 



4. Avoiding infectious diseases. 



Causes, relation of bacteria to disease. 



Routes of transfer to well persons; food, water, flies, milk, con- 

 tact (for nose and mouth discharge as in tuberculosis, thru 

 sputum, mouth-spray and hands.) 



Prevention; clean hands, care in depositing spuctum, avoid 

 throwing mouth-spray into people's faces, care of patients. 

 (See placard issued by Minnesota State Dept. of Education.) 



Problems — 



What part do bacteria play in infectious diseases? 



How may these bacteria be carried from sick to well persons? (See 



type lesson, page 165.) 

 What can we do to prevent our catching these diseases? 

 What can we do to prevent other people from catching diseases from 



us when we are sick? 



5. The blood system ; the errand boy of the body. 



Uses of blood, heart and blood vessels? 

 Problems — 



What does the blood system do for the body? 



6. What to do in case of accidents. 



Cuts, burns, drowning, suffocation, poisoning. 



Problems — 



What may be done in case of poisoning? 



In case of apparent drowning how may respiration be restored? 



In case of cuts what may be done to stop bleeding ? 



What may be done to care for burns? 



III. Christmas Studies. 



Christmas trees and other evergreens. 



