The purpose of this quantitative retrospective study was to understand the impact of prior exposure to sexual health education on middle and high school students' sexual health knowledge, self-efficacy, and intentions. The study analyzed a secondary dataset that included pre- and posttest results collected for program evaluation purposes by a…

This dissertation study investigated secondary mathematics teachers' designing and enacting lessons to draw on students' multiple mathematical knowledge bases. The ultimate objective of incorporating open spaces in mathematics lessons is to support students from culturally and linguistically diverse backgrounds in developing mathematical…

Research on self-regulated learning (SRL) in engineering design is growing. While SRL is an effective way of learning, however, not all learners can regulate themselves successfully. There is a lack of research regarding how student characteristics, such as science knowledge and design knowledge, interact with SRL. Adapting the SRL theory in the…

In Sweden, as in many other countries, programming has been added to the curriculum in recent years. This paper explores how and under what conditions programming is transformed into teaching in technology education. Teachers in grade 7-9 were interviewed about what and how they teach about programming in the context of technology education, and…

This study explores learning vector addition and demonstrating the understanding of vector addition. Vector addition is a key skill in mathematics and science education, but there is a limited amount of research that focuses on this topic. My study investigates how an instructional design framework "concreteness fading" can be used for…

Proportional reasoning failures seem to constitute most errors in probabilistic reasoning, yet there is little empirical evidence about its role for attaining probabilistic knowledge and how to effectively intervene with students who have less proportional reasoning skills. We examined the contributions of students' proportional reasoning skill…

The relation between prior knowledge and learning has been investigated in many studies. However, a recent meta-analysis showed that most of these studies suffered from serious methodological shortcomings, as they failed to account for knowledge growth over time, possible ceiling effects for learners with high prior knowledge, moderating effects…

This study examines the influence of design-based learning on 25 eighth-grade students' design-thinking mindsets, that is, on the mental outlook that they adopt habitually when they engage in design thinking. It also compares changes in design-thinking mindsets across individuals of different genders and different levels of experience in design.…

We applied latent class analysis and the rule space model to verify the cumulative characteristic of conceptual change by developing a learning progression for buoyancy. For this study, we first abstracted seven attributes of buoyancy and then developed a hypothesized learning progression for buoyancy. A 14-item buoyancy instrument was…

Background: Adaptive expertise is a highly valued outcome of mathematics curricula. One aspect of adaptive expertise with rational numbers is adaptive rational number knowledge, which refers to the ability to integrate knowledge of numerical characteristics and relations in solving novel tasks. Even among students with strong conceptual and…

The purpose of this mixed methods study was to investigate students' perceptions of their own Funds of Knowledge (FOK) and the impact that these funds have as students prepare for careers. This purpose was achieved through an embedded mixed methods design with qualitative data collection and analysis embedded within the quantitative research…

This study explored the effects of modality, redundancy, and signaling principles in multimedia learning with abstract and concrete representations of an animation on learning in real middle school settings. Based on these principles of the cognitive theory of multimedia learning, ten types of treatment conditions were tested with a pre-test and…

Background: Video lectures which include the teachers' presence have become increasingly common. As teacher enthusiasm is a nonverbal cue in video lectures, more and more studies are focusing on this topic. However, little research has been carried out on the interactions between teacher enthusiasm and prior knowledge when learning from video…

Even highly urban environments are settings for outdoor learning of local biodiversity, for they contain easily accessible street tree diversity that students walk pass daily. This study uses pre/post assessments and a tree observation curriculum grounded in scientific observation practice to understand the everyday and scientific tree observation…

The purpose of this study was to explore the impact a specific socio-scientific inquiry (SSI) unit has on student achievement and attitudes over the course of two years with two different implementations of the unit. Specifically, this study addressed the following research question: What impact does participation in an SSI unit have on student…