Bansho is a strategy classroom teachers may use to consolidate a three-part lesson.

There's a great monograph from the Capacity Building Series that explains this strategy along with Gallery Walk and Math Congress:
http://www.edu.gov.on.ca/eng/literacynumeracy/inspire/research/CBS_Communication_Mathematics.pdf

Bansho is a japanese word for board writing. The lesson from beginning to end is documented on a board. Since we do not have space to do this, Iain and Kvitka got creative and took it outside their classrooms.

Kvitka Holman (Grade 3@ Donwood Park PS)
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This is the Summary and Highlights of the lesson. Kvitka co-constructed it with her students.
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Iain Brodie (Grade 3/4@ St. Andrews PS)

This is the problem students solved and a summary of their prior learning:
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It's hard to see but student solutions are labelled. Similar strategies are grouped together under that heading. The strategies are organized from less efficient to most efficient.
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Summary and Highlights of the lesson, co-constructed with students.
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As you may notice, this strategy is most useful when students may use a variety of strategies to solve the problem.