The teaching of key scientific topics such as evolution are imperative for scientific literacy, but educators face pressure to eliminate or downplay these topics due to perceived controversy. Although teachers usually bear the burden of ensuring that these topics are taught appropriately, some of this responsibility must also fall upon…

Children often discuss science and nature topics in their everyday conversations with their parents; however, these conversations are not always scientifically accurate. Some researchers argue that these scientifically incorrect conversations interfere with children's learning by reinforcing children's misconceptions (Shtulman, 2017). Others argue…

Science, Technology, Engineering, and Technology (STEM) fields face challenges with underrepresented minority (URM) student achievement and retention. White students earned 59% of bachelor's degrees in science and engineering, while LatinX and African American students earned 16% and 9% respectively (National Center for Science and Engineering…

Knowledge supports all aspects of reading including decoding, fluency, and comprehension (Cervetti & Hiebert, 2015; Cervetti & Wright, 2020; Duke & Cartwright, 2021; Kintsch, 1988, 1988; McNamara & Kintsch, 1996; Priebe et al., 2012). Early knowledge predicts reading growth, and science knowledge and reading have a mutually…

Learning in the sciences is difficult for students from elementary school to university due to misconceptions, or incorrect prior knowledge, interfering with the acquisition of new knowledge. The process of replacing previously incorrect ideas with new and accurate ones is referred to as conceptual change. Which factors and to what extent they…

Climate scientists agree that (a) human activity is a significant driver of recent climate change, and (b) climate change is a danger to humanity. However, the general public accepts the former point, but rejects the latter. Thus, climate experts and the general public diverge in their understanding of the relationship between humans and climate…

This dissertation examines the thesis that implicit learning plays a role in learning about scientific phenomena, and subsequently, in conceptual change. Decades of research in learning science demonstrate that a primary challenge of science education is overcoming prior, naive knowledge of natural phenomena in order to gain scientific…

Empirical evidence from the National Education Inspectorate suggested that teachers at the primary school in this study in an island country in the Caribbean have inadequate science content knowledge. Students' average performance on the science Grade Six Achievement Test (GSAT) has been below 40% for the last 5 years. The purpose of this bounded…

The purpose of this qualitative study was to explore the use of 3-D printed models as an instructional tool in a middle school science classroom for students with visual impairments and compare their use to traditional tactile graphics for aiding conceptual understanding of geoscience concepts. Specifically, this study examined if the students'…

This dissertation is presented in two sections. First, I explore two methods of using stable isotope analysis to trace environmental and biogeochemical processes. Second, I present two related studies investigating student understanding of the biogeochemical concepts that underlie part one. Fe and Hg are each biogeochemically important elements in…

This quantitative ex post facto study examined how race and gender, as elements of culture, influence the development of common misconceptions among STEM students. Primary data came from a standardized test: the Digital Logic Concept Inventory (DLCI) developed by Drs. Geoffrey L. Herman, Michael C. Louis, and Craig Zilles from the University of…

This work describes three case studies conducted to address two major problems in the area of chemistry education research, the lack of reported psychometrics regarding instrument scores, and the need for well-characterized assessments to evaluate college chemistry curricula. The first case study describes a psychometric evaluation of the Colorado…

Science presents many challenging topics, and incorrect prior knowledge of them often interferes with learning. Research has demonstrated that refutation texts promote conceptual change learning by helping readers abandon scientific misconceptions. Little is known about the factors that influence knowledge enrichment, the learning that ensues when…

Global Warming ("GW") is easily one of the most pressing concerns of our time, and its solution will come about only through a change in human behavior. Compared to the residents of most other nations worldwide, Americans report lower acceptance of the realities of GW. In order to address this concern in a free society, U.S. residents…

Even 150 years after Charles Darwin published "On the Origin of Species," public school teachers still find themselves dealing with student resistance to learning about biological evolution. Some teachers deal with this pressure by undermining, deemphasizing, or even omitting the topic in their science curriculum. Others face the…