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Grade:	2nd Grade
Standard #:	Standard 3:
Standard Description:	Understand how to add and subtract numbers up to 1000 and solve related word problems.
Sub Point #:	2.3b
Sub Point Description:	Understand that subtracting is the inverse of adding, and use this inverse to solve problems.
Book/ Unit:	Putting Together and Taking Apart
Investigation:	Investigation 3
Book/ Unit (2):	Mathematical Thinking at Grade 3
Investigation (2):	Investigation 3
Book/ Unit (3):	Coins, Coupons, and Combinations
Investigation (3):	Investigation 3
Book/ Unit (4):	a+b=c needs to be explicitly taught; Traditional Algorithm needs to be taught when appropriate; See CCC page 102 teacher note;  PTTA pg 32-34 Teacher Note
Investigation (4):
Book/ Unit (5):
Investigation (5):
Attachments:

Created at 8/26/2005 9:26 AM by Eric Ferguson Last modified at 8/26/2005 9:26 AM by Eric Ferguson