Black girls face the challenge of developing a healthy sense of self because of racism and sexism in school settings. Building on extant literature, this study examines a sample of socioeconomically diverse Black girls' in predominately White, Black, and racially and ethnically diverse school settings. Data collection included focus groups with…

The animal migration is one of the natural processes and is important not only for animals but also for people. Although this process is inseparable part of the nature, its incorporation into curriculum is on low level, not only in Czech Republic, but also in many other countries. The aim of the research was to identify lower secondary school…

Results of the last thirty years in mathematics education have shown the importance of an operational concept development. One of the geometrical concepts that has been researched for years already, however, not with the particular focus on its systematic teaching in school mathematics, is the concept of angle. In this paper we focus on children's…

Student conceptions related with matter and the particulate nature of matter (PNM), are vital for advanced understanding in chemistry, and have been a research area of significant attention. Lacking in the literature are studies addressing chemical misconceptions from an ontological point of view. The purpose of the current study was to develop a…

Over a period of about 3 years, 3204 students in Grades 4 to 10 completed 9862 tests to identify and track their interpretation of decimal notation. Analysis of the longitudinal data demonstrates that different misconceptions persist among students to different degrees and in different patterns across the grades. Estimating the prevalence of…