The electronic and molecular structure of the acylium cation ([CH[subscript 3]CO][superscript +], 1) receives varied treatment in undergraduate textbooks and online resources. The overall structure of 1 is typically represented as an equal combination of resonance structures containing C-O triple and double bonds, the latter structure occasionally…

A didactic sequence is proposed for the teaching of chemical equilibrium law. In this approach, we have avoided the kinetic derivation and the thermodynamic justification of the equilibrium constant. The equilibrium constant expression is established empirically by a trial-and-error approach. Additionally, students learn to use the criterion of…

The physical sciences, mathematics and technology subjects in Zimbabwe, like in most other African countries, are still male dominated. This is despite numerous efforts over the years directed towards gender equality in these disciplines. Many studies point at teacher education as not doing enough to assist future teachers in these disciplines…

Adoption of the Common Core State Standards present challenges to school districts, school administrators, and teachers. To assist in this endeavor, we present our work on unpacking the CCSS-M for the length, area, and volume Learning Trajectory (LT). The overarching theme of "genetic epistemology" and a five-characteristic framework…

Today's classrooms are more diverse than ever. In fact, research shows that there will be a steady increase in Hispanic, Asian Americans, and African American students in the coming years. Therefore, differentiated instruction may be the panacea that educators are searching for. This paper commences with an introduction and then segways into a…

This study explores three Korean American social studies teachers' experiences of teaching social studies, focusing on their curricular and pedagogical perceptions and practices. Framed by sociocultural theory, this study aims to shed light on the heterogeneous stories and socially and culturally contextualized teaching experiences of Korean…