Developing mathematical inquiry practices requires that teachers are explicit about classroom norms that support these practices. In this study, we asked: "How can a teacher scaffold the development of norms and practices in mathematical inquiry over time?" Analysis of classroom video over a year showed that the teacher constantly…

In this study we extend our prior exploration focused on the extent to which middle school teachers appropriately identified proportional situations and whether there were relationships between attributes of the teachers and their ability to identify proportional situations. For this study, we analyzed both a larger dataset (n = 32) and two…

This paper reports on results of a targeted and extended (two school terms) program for building Grade 3 and Grade 4 students' facility with number facts and application for mental computation. As part of a larger project, this paper reports results from two schools. Results indicated strong gains in number fact recall and mental computation for…

This study aimed to establish the possible relationships between reading comprehension competence, reading attitude and the vividness of mental imagery among Turkish fourth-grade students. Participants were fourth grade students, selected using convenience sampling from two different public schools (n=103) in Bartin, Turkey. The research was…

In this exploratory study, we documented teachers' knowledge of children's mathematical thinking as they engaged in the task of anticipating children's strategies for an equal sharing fraction problem. To elicit an array of knowledge, 18 teachers were deliberately selected with a variety of numbers of years participating in professional…

Vocabulary knowledge assessment methods and instruments have gone through a significant evolution. Computer-based tests offer more opportunities than their paper-and-pencil counterparts, however, most digital vocabulary assessments are linear and adaptive solutions in this domain are scarce. The aims of this study were to compare the effectiveness…

This study investigates the relationship between School Library and Students' achievement on a population sample of 9896 Schools. Many international researches confirmed the importance of the School Library for the Students learning. Recently the IEA PIRLS survey has revealed a positive relationship between the Reading comprehension performance…

The Every Student Succeed Act (ESSA) brings significant changes as well as opportunities for schools to improve their students' academic outcomes. One proposed regulation is for states to analyze the performance of student subgroups separately in order to show how states are levelling the playing field over time to ensure educational equity. This…

This article reports on the effectiveness of an intervention using conceptual change approaches within challenging tasks, on the mathematics gains for low-performing year 3-6 students in in six primary schools. Quantitative data from PAT-Maths testing for each year showed a consistently large effect size of 0.7 compared to expected gain data from…

Inquiry science instruction is especially challenging in elementary grades where teachers are constrained by crowded curricula and time. Professional development (PD) may provide an opportunity to support elementary teacher development of inquiry science instruction. The study examines the inquiry practice of two teachers who participated in an…

Lack of validated research tools in Spanish-speaking countries has limited the extent to which educational research can expand. In recent years, there has been a growing interest in the exploration of affective factors in reading. The need for research on reading and reading motivation in Latin American countries calls for valid, reliable tools to…

Despite prevalent use and practical application, the current and standard assessment of oral reading fluency (ORF) presents considerable limitations which reduces its validity in estimating growth and monitoring student progress, including: (a) high cost of implementation; (b) tenuous passage equivalence; and (c) bias, large standard error, and…

This paper presents assessment study results addressing the question: Do students treat elapsed time problems differently if phrased as "half an hour" versus "thirty minutes"? A paper-and-pencil assessment was given to second (n = 292) and fourth (n = 205) grade students in six New England elementary schools. I compare…

In this study, we investigated how Grade 3 and 4 students' organizational structure for volume units develops through repeated experiences with a virtual manipulative for building prisms. Our data consist of taped clinical interviews within a micro-genetic experiment. We report on student strategy development using a virtual manipulative for…

We report on the development and evaluation of MathVision, a mobile-application designed to develop Virtual Professional Learning Communities through asynchronous discussion about 2nd, 3rd, 4th, and 5th grade students' mathematical thinking. MathVision allows teachers to upload videos of problems solving sessions using Cognition Based Assessment…