Lesson 6

Two Paper-and-Pencil Methods

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X
A. 7 + 5 = 12

5 + 7 = 12		 12 − 5 = 7

12 − 7 = 5
B. 10 + 2 = 12

12 = 2 + 10		 12 − 2 = 10

12 − 10 = 2
C. 10 + 1 = 11

11 − 10 = 1		 1 + 10 = 11

11 − 1 = 10


Ongoing Assessment

Use DPP item S to assess students' abilities to solve the addition facts in Group E [E7] and the related subtraction facts [E8].

S. Fact Families Practice: Group E

A. 7 + 5 =

5 + = 12		 12 − 5 =

12 − = 5
B. 10 + = 12

12 = 2 + 		12 − 2 =

− 10 = 2
C. 10 + = 11

11 − = 1		 + 10 = 11

− 1 = 10