The objective of this dissertation was to explore the paradoxical nature of Combinatorics as both a difficult and accessible domain in Mathematics, particularly for K-12 students. This paradox in Combinatorics' nature raised questions about how students interact with problems in this domain and the factors influencing their understanding and…

This study is aimed to identify the effects of task complexity on first language (L1) use and the functions it may serve when two groups of learners of English as a foreign language (EFL) work on collaborative tasks. Twenty-four pairs of Chinese EFL learners from two universities were assigned to a lower-proficiency and a higher-proficiency group,…

The attribution of learning success or failure is crucial for students' learning and motivation. Effective attribution of their learning success or failure in the context of a small private online course (SPOC) could generate students' motivation toward learning success while an incorrect attribution would lead to a sense of helplessness. Based on…

Graded reading is one of the important ways of English learning. How to automatically judge and grade the difficulty of the English reading corpus is of great significance for precision teaching and personalized learning. However, the current rule-based readability assessment methods have some limitations, such as low efficiency and poor accuracy.…

Studies relating to the vocabulary items within EFL textbooks have revealed a divergence from well-researched wordlists such as the New General Service List (NGSL) (Browne et al., 2013), and the BNC/COCA wordlist (Nakayama, 2022; Sun and Dang, 2020). In Japan, the Ministry of Education, Culture, Sports, Science and Technology (MEXT) recently…

Latina community college students face significant barriers in achieving their educational goals, particularly transferring to 4-year institutions. Despite comprising a large and growing demographic within community colleges, their unique needs and experiences often remain unaddressed. This qualitative study explored the lived experiences of…

This study focuses on the relationship between teacher-text-child interactions during shared picturebook reading and its effect on children's narrative comprehension. Using a micro-analytic approach, we studied nine large-group bookreading sessions of one experienced teacher and her classroom of 17 preschoolers from low-income backgrounds over a…

Although teachers' autonomy support and structure are considered essential elements of the classroom environment to promote effective learning strategies, prior research has sometimes provided conflicting results. This inconsistency may stem from how autonomy support and structure relate to some outcomes but not others. Alternatively, this…

This study investigated the extent to which different pedagogical gestures contribute to learners' foreign or second language (L2) narrative recall, and further discussed how task complexity and task difficulty (i.e. working memory capacity or WMC) influence recall performance. Sixty-four adolescent learners, assigned to four different gesture…

My study aimed to explore the phenomenon of the deterioration of culture and language in an indigenous population due to the establishment of large development projects. I focused on the historical displacement and forced relocation faced by the Nubian population in Egypt as an example. My study highlighted the role of women in preserving the…

Despite the increasing amount of research into mathematical problem posing, research shows that much is still unknown about students' cognitive processes when engaged in problem posing. In this study, 16 undergraduate students' problem-posing products and processes are examined in order to shed light on the forms of mathematical reasoning that the…

There is extensive empirical research on principles of effective teacher professional development (PD). However, teachers' expectations of PD and how well these align with scientific recommendations are only rarely addressed. N = 125 teachers were presented with video vignettes on two evidence-based interventions of varying complexity for which…

Research on the multimedia effect in testing indicates that static representational pictures (RPs) and, potentially, dynamic RPs that further subdivide the picture into segments may support students' mental processing. This might be especially relevant for mathematical word problems that pose high mental demands in a multistage solution process.…

The subject of physics can sometimes seem esoteric and challenging to engineering students. It would be beneficial to create a more conducive learning environment for them by combining words, mathematical equations, graphs, and diagrams to increase their problem-solving abilities. It has been demonstrated in mechanics that employing multiple…

Most military-connected students (MCS) with active-duty parents attend public schools in the United States. Due to the highly mobile military lifestyles of MCS, some are at risk for academic, emotional, and social challenges. School counselors are often charged with supporting and advocating for MCS; therefore, it is vital to understand elementary…