Many educational data mining studies have explored methods for discovering cognitive models and have emphasized improving prediction accuracy. Too few studies have "closed the loop" by applying discovered models toward improving instruction and testing whether proposed improvements achieve higher student outcomes. We claim that such…

This study relied on motivational models derived from self-determination theory to explain how garden-based science activities can contribute to minority students' motivation and learning in science class and academic identity in science. Participants were 105 sixth-grade students from primarily low-SES families at two diverse urban schools.…

This paper discusses the implementation and evaluation of an innovative professional development program that supported 8th grade mathematics teachers in designing learning activities that assisted students in developing a conceptual understanding of mathematics. Funded by an Investing in Innovation (i3) grant from the U.S. Department of…

The results of educational research studies are only as accurate as the data used to produce them. Drawing on experiences conducting large-scale efficacy studies of classroom-based algebra interventions for community college and middle school students, I am developing practice-based data cleaning procedures to support scholars in conducting…

The purpose of this study was to identify relationships between job satisfiers and job dissatisfiers that teachers experience in the workplace, using the lens of the Weighted Balance Satisfier Model. The 2011-12 school year Schools and Staffing Survey (SASS) of the Institute of Education Sciences (IES), U.S. Department of Education was the source…

Principals are increasingly held accountable for school achievement. This paper reports the results of a mixed methods sequential Quan --> Qual research study to explore how middle school principals created a culture of academic optimism (AO) that promoted high student achievement (SA). Based on the analysis of AO scores from 26 schools, mostly…

In this study, we considered how middle school teachers understood the relationship between fractions and ratios. We used two instruments to collect data from 11 teachers and relied on Knowledge in Pieces as a lens for considering understandings teachers have and how coherent those understandings are. From our analysis, we developed three main…

Professional development that furthers teachers' understanding of mathematics classroom discourse offers possibilities to improve students' learning of mathematics. It is not clear, however, how teachers relate such professional development experiences to their own classroom practice. In this paper, I discuss the features of mathematics classroom…

In this study we investigated eighth grade students' informal justification for the circle area formula to expand accounts of the measurement knowledge for middle-school age students. Data were collected during three paired interviews of a three-year teaching experiment. Here we describe schemes students exhibited as they operated on measurement…

This paper reports on a mathematics intervention initiative, "Prepare 2 Learn," designed taking into account research literature and elements of other successful programs. The program was intended to prepare students for their upcoming mainstream mathematics lessons as well as make them aware of the impact they can have on their own…

The purpose of this study was to analyze principals' perceptions of middle grades programs in public middle and K-8 schools in North Carolina. A comparison of principals' perceptions of middle grades programs is made by grade configuration (middle vs. K-8) and by school type (Schools to Watch (STW) vs. non-Schools to Watch (non-STW)). A comparison…

This study examined the intersections of race, class, gender, and exclusionary discipline in the lives of urban, middle school, Black girls. The lived experience of being Black, female, in an urban environment can not be understood from a lens of mutual exclusivity; Therefore, one must also include the interactions with institutions that…

The development of transversal competences is essential for the success of engineers, who need to have the ability to adapt to the new and changing demands posed by modern society and scientific advances. It is a challenge for professors to teach and evaluate transversal competences, since such competences are related to attitudes and values. We…

Mathematical problem solving typically involves manipulating visual symbols (e.g., equations), and prior research suggests that those symbols serve as diagrammatic representations (e.g., Landy & Goldstone, 2010). The present work examines the ways that instructional design of student engagement with these diagrammatic representations may…

This paper examines the impact of the informational value of feedback choices on students' performance, their choice to revise, and the time they spend designing posters and reading feedback in an assessment game. Choices to seek confirmatory or critical feedback and to revise posters in a poster design task were collected from a hundred and six…