31 
But the most satisfactory and most valuable results are obtained 
by working with small groups. The author of The Education of 
Henry Adams describes “the lecture system to classes of hun- 
as “very much that of the Twelfth Century,” 
dreds” and gives 
Fic. 2. Ex-soldiers in the two years’ training course for gardeners. An 
outdoors lesson. 
his opinion that ‘““no man can instruct more than half-a-dozen 
students at once.” This is perhaps a somewhat extreme state- 
ment, but it is generally agreed among educators that the largest 
class that can be handled by one teacher to best advantage is 
about twenty. If we had not adhered as rigidly as possible to 
