Reinventing Arithmetic - Historical ideas from Piaget to Constance Kamii -
Addition - Sequences - facilitation of learning

These are great examples to support

Supporting Notes on development of number sense, place value, unitizing and more ...

Focus questions:

 

Video 1 Introduction ... (1:40)

 

 

 

Video 2 Addition 9 + 6 - three ways ... (2:14)

 

 

 

Video 3 Addition 87 + 23 - decompose and compose as tens and ones ... (0:24)

 

 

 

Video 4 Addition 13 + 13 - decompose and compose ... (1:24)

 

 

 

Video 5 Addition 17 + 13 - decompose and compose ... (1:20)

 

 

 

 

Video 6 Addition 26 + 5 - four ways - decompose and compose ... (3:00)

 

 

Video 7 Summary ... (0:40)

 

 

 

These are great examples to support
how addition and subtraction is developed and facilitated.

 

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Dr. Robert Sweetland's notes
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