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This activity teaches students to construct arguments and critique the reasoning of others, and also provide formative assessment opportunity for the teacher to get a sense of students number sense and fraction sense. It is a good way to introduce mathematical communication norms and accountable talk stems.

This is an overview of the routine along with some sample tasks.

This document is meant to help you plan out a task to use with Sharing Skepticism.

These are sample slides for the Sharing Skepticism instructional routine. Go to File => Make a copy in order to edit a copy of these slides for your own use.