Douglas Van Dine

Marzano Research

Researchers often develop instruments using correctness scores (and a variety of theories and techniques, such as Item Response Theory) for validation and scoring. Less frequently, observations of children’s strategies are incorporated into the design, development, and application of assessments. We conducted individual interviews of 833 prekinderg...

We present our findings with respect to our two research questions: 1) How well do children at the ICS and ARCS levels of the LT for area measurement estimate areas of rectangles and what is the nature of their estimates? And 2) To what extent can ICS and ARCS level children’s area estimation performance be quantitatively improved through targeted...

We examine the effects of 3 interventions designed to support Grades 2-5 children's growth in measuring rectangular regions in different ways. We employed the microge-netic method to observe and describe conceptual transitions and investigate how they may have been prompted by the interventions. We compared the interventions with respect to childre...

We evaluated the effects of three instructional interventions designed to support young children’s understanding of area measurement as a structuring process. Replicating microgenetic procedures we used in previous research with older children to ascertain whether we can build these competencies earlier, we also extended the previous focus on corre...

This monograph is a report on a 4-year-long multisite longitudinal study in which we studied children’s thinking and learning about geometric measurement (i.e., length, area, and volume). The Children’s Measurement research team, as funded by the National Science Foundation between 2007 and 2012, completed the research reported in this monograph. D...

This dissertation is a compilation of three related papers: • Paper 1: Development of a Learning Trajectory for Volume Measurement – A review of research • Paper 2: Verifying and Refining a Developmental Progression for a Learning Trajectory for Volume Measurement – Pre-K through Grade 2 • Paper 3: Evaluation of a Revised Developmental Progression...

REMA TEAM EMA

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 establishment of a research base for instruction in measurement, we evaluated and refined a previously developed learning trajectory in e...