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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Martinie, Sherri L.

Sherri L. Martinie

Sherri Martinie, an Associate Professor of Curriculum and Instruction in the College of Education at Kansas State University, teaches undergraduate and graduate courses in mathematics education. Prior to taking her position at Kansas State, she taught elementary, middle and high school mathematics for a combined 20 years. She is continually seeking innovative ways to support preservice and in-service teachers in the development and refinement of effective mathematics teaching practices.