This dissertation focuses on three manuscripts all related to bolstering science achievement through recommendations from the National Research Council (NRC) regarding the teaching and learning of science. The manuscripts address meeting the NRC's call to incorporate curriculum and assessment that lead to more in-depth knowledge that can be…

Recently Burkholder "et al." argued that class normalized gains over the entire population of courses is approximated by a Cauchy distribution, not by a normal distribution, and therefore should not be used to compare different classes because means and standard deviations cannot be calculated. They argued that multiple linear regression…

This study examined outcomes for AP® Calculus and AP Physics students on the 2015 Trends in International Math and Science Study (TIMSS) relative to other participating countries and other advanced math and science students in the United States. Compared to other countries in the study, AP Calculus BC and AP Physics C: EM students outperformed all…

In contrast to a macroscopic solid, the color and spectroscopic properties of gold nanoparticles change with size. Here, we propose a teaching platform for high school students (hereafter defined as students, attending secondary school in Europe, preparatory high schools in the US, or any educational institution of a comparable level) that…

This study investigates the inclusion of health education concepts in biology textbooks in the United States of America and Singapore. It employs a content analysis methodology to examine biology textbooks, considering the theme as a unit and dividing health concepts into four main fields. The findings for both countries indicate that the field of…

Chemistry plays an important role in developing scientific theories to describe, explain, and predict the physical world and to produce useful products for improving quality of life throughout history. To arouse student awareness of the value and importance of learning chemistry and becoming chemistry literate, we propose an application of systems…

The current study compared American, Korean, and Indonesian middle and high school students' CS attitudes. Concurrently, this study also examined whether the items in the CS attitudes scale exhibit country and gender measurement biases. We gathered data on CS attitudes from middle and high school students in the US, Korea, and Indonesia. The…

The current trend in science learning leans more towards interdisciplinary (integrated) learning. Before 1989, several studies reviewed articles related to integrated science. However, research discussing articles on integrated science from 1996 until the present day is not yet available. The purpose of this study was to review 36 empirical…

The systems thinking approach requires understanding and interpreting complex systems. This review investigated how the systems thinking approach in science education is positioned in peer-reviewed empirical research articles and to identify the trends used in the current literature. A systematic review of open-access, empirical peer-reviewed…

Science is a collaborative process and electronic means of communication enhance collaborative possibilities. It is an important ability to be able to effectively work with people from different cultures. Our program uses physics activities to bring secondary school girls from different cultures together. Students from a school in the United…

In genetics education, symbols are used for alleles to visualize them and to explain probabilities of progeny and inheritance paradigms. In this study, we identified symbol systems used in genetics textbooks and the justifications provided for changes in the symbol systems. Moreover, we wanted to understand how students justify the use of…

The authors of this report aim to understand the health of the science, technology, engineering, and mathematics (STEM) education and labor market in the Appalachia region -- defined as the intersection of Ohio, Pennsylvania, and West Virginia -- with a focus on the mining and extraction industry. This report is the third in a three-part series.…

Momentum is a foundational concept in physics. Although it is often taught in introductory mechanics courses, there are a limited number of studies on this topic in the literature. The results from these studies have consistently shown that students have difficulties in understanding momentum, especially the connections between net force, time,…

The study of educational simulations at the secondary level has typically centered on programs that are competitive, shorter in duration, and characterized by their low fidelity, or a lack of realism. The resources required to hold longer, more immersive, and nuanced programs are often prohibitive for teachers of political science programs. As…

"U.S. Performance on the 2015 TIMSS Advanced Mathematics and Physics Assessments: A Closer Look" expands upon the results described in NCES' [National Center for Education Statistics'] initial "Highlights" report on TIMSS Advanced. This new report provides in-depth analyses that (1) examine the demographics, school…