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Current intervention research in special education focuses on children's responsiveness to teacher modeled strategies and not conceptual development within children's thinking. As a result, there is a need for research…
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In this article, authors evaluated the effects of three instructional interventions designed to support young children’s understanding of area measurement as a structuring process. We evaluated the…
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This monograph is a report on a four-year-long multisite longitudinal study that studied children’s thinking and learning about geometric measurement (i.e., length, area, and volume). Quantitative…
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This article describes how research-based learning progressions can be used to enhance the analysis and response to student work. Dig deeper into classroom artifacts using research-based learning…
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This paper discusses the extent to which one case study elementary school child with identified learning disabilities (LDs) made sense of composite units and unit fractions. Students with learning…
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This study explored how teachers interpreted and responded to their own student work during the process of formative assessment. This study explored how teachers interpreted and responded to their own…
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In this report, authors describe the results of a rigorous two-year study of the impacts of a mathematics initiative called Ongoing Assessment Project (OGAP) on teacher and student learning in grades 3-5 in two…
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This research focuses on ways in which balance scales mediate students’ relational understandings of the equal sign. This research focuses on ways in which balance scales mediate students’ relational…
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This study evaluated a portion of our learning trajectory, focusing on the instructional component. We found that the instruction was successful in promoting a progression from one level to the next for 40% of the children…
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Designed to be integrated with any curriculum, each grade level includes 18-20 one-hour lessons to be conducted throughout the school year. Each LEAP lesson lasts about an hour is designed to fit within a typical daily…
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This presntation addreses 4 research cquestions   •What extant criteria do Grade 8 students use to choose the better line of fit between two lines “fit” to a set of data, when both lines express the trend of the data…
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This is a technical report detailing the methods and findings for each of the research studies in the LLAMA project.  Mathematics Achievement Learning…
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In this manuscript, we propose that educators’ perspectives may serve as an independent source of evidence that can be integrated with traditional evidence sources (e.g., cognitive interviews with students, psychometric…
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In this report section, we discuss the importance of aligning classroom assessments with learning goals and instructional practices to both shape and evaluate students’ learning opportunities. In this…
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'Algorithms’ is a core CS concept included in the K-12 CS learning standards, yet student challenges with understanding and using algorithms are still not well documented. This paper describes an approach to decompose the…
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‘Algorithms’ is a core CS concept included in the K-12 CS standards, yet student challenges with understanding different aspects of algorithms are still not well documented, especially for younger students. This paper…
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This poster presents findings on middle school students’ understanding of core computer science (CS) concepts, such as variables and control structures, using cognitive think-aloud interviews with eight students…
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Measuring and Visualizing Space in Elementary Mathematics Learning explores the development of elementary students’ understanding of the mathematics of measure, and demonstrates how measurement can serve as an anchor for…
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High-stakes tests take time away from valuable learning activities, narrow the focus of instruction, and imply that science involves memorizing details rather than understanding the natural world. Current tests lead…
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Mathematics Learning Progression Presentation Elementary Barrett, J…
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We examined children’s development of strategic and conceptual knowledge for linear measurement. We conducted teaching experiments with eight students in grades 2 and 3, based on our hypothetical learning trajectory for…
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This is a research paper presentation. Mathematics Measurement Learning Progression Presentation…
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Measurement is a critical component of mathematics education, but research on the learning and teaching of measurement is limited, especially compared to topics such as number and operations. To contribute to the…
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This webinar, led by Edith Gummer (formerly of NSF), discusses the guidelines outlined in the report co-authored by the Institute of Education Sciences, U.S. Department of Education and the National Science Foundation…