Grade 3 Advantage Math NBT Chapter 1 Parent Videos

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Lesson Number Title Length in minutes
Preface for Algorithm vs. Strategy Links to an external site. 3:36
Preface for Strategies for Addition and Subtraction Links to an external site. 4:51 
1.1 Strategies for Mental Math Links to an external site. 4:14
1.2 More Ways to Decompose Links to an external site. 4:01
1.3 Properties of Addition Links to an external site. 3:23
1.4 Number Line Addition:  Result Unknown Links to an external site. 4:06
1.5 Number Line Subtraction:  Result Unknown  (video unavailable)

0:00  (3:41)
1.6 Number Line Addition:  Change Unknown Links to an external site. 4:57
1.7 Addition:  Modeling an Algorithm Links to an external site. 4:29
1.8 Addition:  Recording an Algorithm Links to an external site. 4:39
1.9 Addition Task Links to an external site. 3:09
1.10 Subtraction:  Modeling an Algorithm Links to an external site. 4:46
1.11 Subtraction:  Recording an Algorithm Links to an external site. 5:02
1.12 Subtract Using Constant Difference Links to an external site. 2:40
1.13 Strategies for Subtracting With Zeros Links to an external site. 7:20
1.14 Subtraction Task Links to an external site. 3:13