GENERAL AIMS 



139 



" 6. Estimates. Draw on the blackboard, by judgment, a 

 ic one foot long. Measure and correct. Two feet long. 



[alf a foot long. Similar simple exercises are worked out 



>r other measuring units." 



THIRD YEAR GRADE 



" In the third school year, the greater portion of the time 

 during the first term of five months is devoted to addition 

 and subtraction. Seeing, memorizing, applying, these are 

 still the successive steps followed in presenting the work. 



" Objects are used occasionally, but only when the chil- 

 dren need help in imaging the combinations given. A re- 

 view of the combinations in addition and 

 subtraction, previously given, is combined 

 with their systematic application to all pos- 

 ble combinations within the number space no. As sub- 

 ction is but the inverse of addition, the two are corre- 

 ed, the emphasis, however, being placed on addition, 

 ginning with the combinations 2 and 3 (although any 

 ,er combination will do as well), the pupils commence the 

 rmal work of the year as follows : 



The 

 Combinations 



3333 



2 12 22 32 



2222 



3 13 23 33 



3 

 102 



2 

 I0 3 



then 



" After the pupils have mastered these combinations, the 



