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Susan A. Peters

Statistics uses scientific tools but also requires the art of flexible and creative reasoning.

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Susan A. Peters, Michelle Gross and Amy Stokes-Levine

Redesigning a statistics unit allows seventh graders to produce an engaging and authentic investigation.

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M. Kathleen Heid, Duane T. Graysay and Susan A. Peters

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Susan A. Peters, Victoria Miller Bennett, Mandy Young and Jonathan D. Watkins

A sequence of five activities, progressing from concrete to abstract, can help students develop deep understandings of the mean.

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Margaret Mohr-Schroeder, Robert N. Ronau, Susan Peters, Carl W. Lee and William S. Bush

This article describes the development and validation of two forms of the Geometry Assessments for Secondary Teachers (GAST), which were designed to assess teachers' knowledge for teaching geometry. Both forms were developed by teams of mathematicians, mathematics educators, psychometricians, and secondary classroom geometry teachers. Predictive validity for the GAST assessment was explored by observing and testing 157 teachers as well as administering pre– and post–tests to 3,698 students. The reliability coefficient for both GAST assessment forms was acceptable (r = .79). GAST assessment scores explained a statistically significant but small amount of the variance of student scores, demonstrating an effect that was greater than the number of years of teaching experience but smaller than the effect of having an advanced degree.

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Sylvia Celedón-Pattichis, Lunney Lisa Borden, Stephen J. Pape, Douglas H. Clements, Susan A. Peters, Joshua R. Males, Olive Chapman and Jacqueline Leonard

In July 2017, the National Council of Teachers of Mathematics (NCTM) released a new mission statement that shifts the organization's primary focus to supporting and advocating for the highest quality mathematics teaching and learning for all students. A key strategy for achieving this goal is to advance “a culture of equity where each and every person has access to high quality teaching and is empowered as a learner and doer of mathematics” (NCTM, 2017, “Strategic Framework,” para. 2). Increasing equity and ensuring the highest quality mathematics teaching and learning for all students requires systemic change (National Council of Supervisors of Mathematics [NCSM] & TODOS: Mathematics for ALL, 2016). As educators are called to enact NCTM's new mission, we acknowledge that such change is complex. We also acknowledge that our own experiences conducting equity work that is grounded in an asset-based approach are at different stages of development, ranging from beginning levels to lived experiences as diverse mathematics learners and mathematics education researchers. We see this change in mission as a call to both act politically (Aguirre et al., 2017) and to change story lines (i.e., “broad, culturally shared narrative[s]”; Herbel-Eisenmann et al., 2016, p. 104) that dominate the public perception of mathematics learning and teaching. We acknowledge that systemic barriers are part of a larger educational issue, but for the purposes of this commentary, we focus on mathematics.