If you try these with students PLEASE share feedback, comments, student work by

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tweets to:  @normabgordon with #SmudgedMath               email: normabgordonmath@gmail.com

SmudgedMath, inspired by Dr. Peter Liljedahl, transforms tasks by ‘smudging’ components thereby increasing ambiguity and opening the mathematical process thought space. Sparking curiosity creates opportunities for students to consider tasks critically, creatively and conceptually.

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 TMC presentation slides      NCTM Chicago presentation slides

 

Images are linked to pdfs you can download and other tasks can be found searching #SmudgedMath on twitter