Background: Science teachers represent the critical link to the development of a scientifically literate citizenry who is capable of addressing societal problems and global challenges in ways that positively affect the quality of life. Purpose: We investigated how a long-term, inquiry-based professional development program could be utilized to…

This study used nationally representative data from the 2011 National Assessment of Educational Progress (8th-grade Science) and the 2018 National Survey of Science and Mathematics Education toward two primary purposes: (1) to examine the association between teachers' formal (university) content preparation in science and student outcomes in…

The present dissertation in practice (DiP) proposal delineates an action research study designed to evaluate the use of problem-based learning (PBL) in an eighth-grade earth science class to assess the impact of PBL on student achievement. I have observed that students often struggle with developing an understanding of how the motions of the sun,…

Mary Colson is an eighth-grade Earth science teacher at Horizon Middle School, and Russ Colson is a professor of geology and Earth science education in the Department of Anthropology and Earth Science at Minnesota State University Moorhead, both in Moorhead, Minnesota. Since her first year in teaching eighth grade Earth science, in 1986,…

Mary Colson is an eighth-grade Earth science teacher at Horizon Middle School, and Russ Colson is a professor of geology and Earth science education in the Department of Anthropology and Earth Science at Minnesota State University Moorhead, both in Moorhead, Minnesota. Since her first year in teaching eighth grade Earth science, in 1986,…

In this study, we investigated gender and minority achievement gaps on 8th-grade science items employing a multilevel item response methodology. Both gaps were wider on physics and earth science items than on biology and chemistry items. Larger gender gaps were found on items with specific topics favoring male students than other items, for…

The effectiveness of class size reduction on student performance has been of great research interest and policy debate worldwide. Nevertheless, the evidence has been largely inconclusive partially due to potential bias arising from non-random placement of students and teachers in classrooms of different sizes. This study applied instrumental…

Different approaches are employed when teaching environmental issues. One approach, termed the "environmental scientific approach," perceives environmental education as part of life or earth sciences, providing factual, scientific knowledge. Another approach, termed the "environmental sustainability citizenry approach",…

Improving K-12 Science, Technology, Engineering, and Mathematics (STEM) education has a priority on numerous education reforms in the United States. To that end, developing and sustaining quality programs that focus on integrated STEM education is critical for educators. Successful implementation of any STEM program is related to the curriculum…

Using three constructs taken from Latour's 2005 book, "Reassembling the Social," we consider our work in 2 contexts that were part of a project to support science teachers working with English learners: an 8th-grade physical science class in a summer science enrichment academy, and a 6th-grade Earth science class in a public middle…

This study dealt with the use of interactive e-learning portal for the enrichment of Grade 8 learners' conceptual understanding in Physics at Luis Palad National High School for the School Year 2014-2015. This study utilized experimental method of research employing the use of post-test control group design. An interactive e-learning portal…

Background: In recent years, science curricula (chemistry, physics, biology, earth science, life science, etc.) in many countries have been prepared and applied according to the inquiry-based learning approach. Although the acquisition and application of the inquiry skills are one of the important objectives of the science curriculum, the inquiry…

The Race to the Top (RTTT) federal grant program was an initiative that targeted improving Science, Technology, Engineering and Mathematics (STEM) education. However, the evaluation of the program reported only student outcomes for mathematics and reading/language arts. The purpose of this study was to estimate the effects of RTTT program on…

Technology and a variety of resources play an important role in students' educational lives. Vygotsky's (1987) theory of tool mediation suggests that cultural tools, such as computer software influence individuals' thinking and action. However, it is not completely understood how technology and other resources influence student action. Middle…

A longstanding aim of education efforts to position students as knowledge constructors so they are engaged in the building and shaping their learning environment. Current education reforms situate student sense making around authentic science inquiries where students are engaged in the practices of science. In the science classroom, this means…