Bridging provides middle school mathematics teachers with new materials and methods for teaching the Common Core practice of argumentation. Mathematical argumentation

Bridging provides teachers with a toolkit:

New to Bridging III:

Tools for mobile devices that assist teachers in planning for argumentation throughout the school year.

A quick glance at some of our success:
In two previous Bridging projects, we developed our innovative program in a diversity of districts and showed its promise through a small-scale experiment and through student assessments. Bridging teachers supported twice as much argumentation in their classrooms as did control teachers. Students on average gained 10 out of 36 possible points on an assessment of content and argumentation.


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