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Matt B. Roscoe

Symmetric dot patterns are a particularly powerful object for investigation, providing opportunities for foundational learning across PK–5. We found that second-grade students naturally used repeated addends to count symmetric dot patterns created using the new software TileFarm.

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Jennifer R. Brown

Set sail to explore powerful ways to use anchor charts in mathematics teaching and learning.

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Taajah Felder Witherspoon

Observe fourth graders' thinking in action as they connect the multiplication of whole numbers to arrays.

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Amy Noelle Parks and Diana Chang Blom

Capitalize on opportunities for mathematical concepts to emerge in common preschool contexts, such as doll corners and block centers.

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Andrew Tyminski, Corey Drake, and Tonia Land

Despite the prevalence of mathematics curriculum materials in elementary classrooms, most current mathematics methods texts provide little or no support for preservice teachers (PSTs) learning to use curriculum materials. To meet this need, we have designed and studied several modules intended to provide PSTs with opportunities to learn about and from the use of curriculum materials. This article describes our research related to 1 of these modules–Addition Starter Sentences. Our results examine the nature of PSTs' developing content knowledge and pedagogical content knowledge, evidenced through their interactions with and reflections on Standards-based curriculum materials. We conclude with implications for mathematics teacher education research and practice.

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Christine C. Benson, Jennifer J. Wall, and Cheryl Malm

Are third graders ready to connect procedures to concepts of area conservation, distribution, and geometric interpretation?

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Jennifer L. Marston, Tracey Muir, and Sharyn Livy

Use this new framework to select and analyze picture books for their mathematical content, such as the accuracy of the number of cans that stack in a shopping cart.

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Susan Jo Russell

To support mathematics educators as they consider implications of the Common Core State Standards for Mathematics (CCSSM) for instruction and assessment, Teaching Children Mathematics launched a series of articles beginning in the February 2012 issue. In this concluding installment, we concentrate on the implementation of the eight Standards of Mathematical Practice and the constellations of Practices and Standards. In the September issue, Matthew Larson follows up the series with a feature article that looks at CCSSM through the lens of mathematics education reform history and asks the provocative question, Will CCSSM Matter in Ten Years?

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Beatriz S. D'Ambrosio and Signe E. Kastberg

Using grids can help students overcome confusion about place value.

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Butterflies are beautiful insects for students to study. Unfortunately, some kinds of butterflies are on the endangered species list because their natural habitats are disappearing. Members of our school community are concerned about this dilemma, so we decided to plant a butterfly garden.