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S. Asli Özgün-Koca

Student interviews inform us about their use of technology in multiple representations of linear functions.

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Jennifer M. Lewis and S. Asli Özgün-Koca

This research department describes strategies for helping students persevere in solving complex mathematics problems.

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S. Asli Özgün-Koca and Matt Enlow

In this month's Growing Problem Solvers, we focused on supporting students' understanding of congruence and similarity through rigid motions and transformations. Initial understandings of congruence and similarity begin in first grade as students work with shapes in different perspectives and orientations and reflect on similarities and differences.

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Matt Enlow and S. Asli Özgün-Koca

This month's Growing Problem Solvers focuses on Data Analysis across all grades beginning with visual representations of categorical data and moving to measures of central tendency using a “working backwards” approach.

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Michael Todd Edwards, Michael S. Meagher and S. Asli Özgün-Koca

This exploration, with activity sheets, engages students in mathematical argumentation and reasoning using pentominoes.

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Michael S. Meagher, Michael Todd Edwards and S. Asli Özgün-Koca

The Geoboard Triangle Quest yields many results. The challenge for students is to verify which—if any—are correct.

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S. Asli özgün-Koca, Thomas G. Edwards and Kenneth R. Chelst

Analyzing profit from building LEGO® pets allows students to solve an authentic problem, first concretely and then abstractly.