Reinventing Division - Historical ideas from Piaget to Constance Kamii -
Subtraction - Sequences - facilitation of learning

These are great examples to support
multiplication and division are developed and facilitated.

Video 1 - Division by addition
1 box has 3 packages; 1 package has 11 crackers
(3 minutes 53 seconds)

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Video 2 - Division by adding up and multiplication and addition
M&M's - five bags with a total of 275 shared with 20 students
Two students share solutions
(3 minutes 4 seconds)

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Video 3 - More M&M's - this time with a total of 258 shared with 22 people
All in Video 2 and 3 kept the numbers whole and added.
Two students share solutions and summary. (3 minutes 50 seconds)

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Dr. Robert Sweetland's Notes ©