Following on earlier examinations of biology high school textbooks' handling of race, this study examines eleven biology textbooks, intended for US high school use and published between 2014 and 2019. It offers a close reading of these textbooks' treatment of four topics that have been associated with race: genetic disorders, human origins, skin…

In this paper we focused on university mathematics students' mental constructions on the concept limit of a sequence. The aim was to explore the nature of the mental constructions and to contribute to Action-Process-Object-Schema (APOS) theory in terms of instructional strategy for teaching limit of sequences. The belief that understanding…

An augmented reality (AR) application that complements a DNA precipitation experiment has been developed for use on mobile devices. The AR experience provides atomistic detail on the reasoning behind the experimental observations. The development of the application is described, as are the download data. In a pilot survey, the students were asked…

Advanced modeling of item response data through the item response theory (IRT) or item factor analysis frameworks is becoming increasingly popular. In the social and behavioral sciences, the underlying structure of tests/assessments is often multidimensional (i.e., more than 1 latent variable/construct is represented in the items). This review…

In the present study, language performance on standardized assessments (e.g., overall verbal performance, receptive and expressive vocabulary) and spontaneous language produced in play was compared between preschool-aged boys with autism spectrum disorder ([subscript n]ASD, n = 25) and boys with fragile X syndrome (FXS, n = 16). At the…

The purpose of this study is to discuss notions of femininity and masculinity in situations of argumentation among Swedish upper-secondary students who are studying Natural Science. The empirical material is drawn from an ethnographic inspired study, where I followed a group of students in all of their science teaching throughout a semester. This…

This dissertation examines how Indigenous Knowledge (IK) and Traditional Knowledge (TK) systems interact with Western Scientific Knowledge (WSK) in contemporary efforts to reintroduce traditional agro ecosystems and build transnational collaborations among Indigenous Peoples and Local Communities (IPLCs). I focus on the role of education, broadly…

Most long-term memories are forgotten. What happens, then, to the changes in neuronal gene expression that were initially required to encode and maintain the memory? Here we show that the decay of recall for long-term sensitization memory in "Aplysia" is accompanied both by a form of savings memory (easier relearning) and by persistent…

The Hardy-Weinberg principle (HWP) is a fundamental model upon which much of the discipline of population genetics is based. Despite its significance, students often leave introductory biology courses with only a shallow understanding of the use and implications of the HWP. I contend that this deficiency in student comprehension is too-often a…

The teaching of quantitative genetic variation in the undergraduate laboratory practical environment can be difficult as, for quantitative phenotypes that are under the control of multiple loci, detection of phenotypic differences caused by individual variants is problematical without large samples, impractical in such classes. Pet dogs provide a…

Over the course of 3 years, the Political Science and Biology Programs at a regional HBCU have built a curricular learning community centered on a mock trial competition, where a microbiology course was paired with an introductory legal studies course. Over the course of a semester, students enrolled in both courses studied a real appellate case…

"The Autism Spectrum Handbook & Resource Guide" combines valuable, easy-to-understand educational information for consumers, patients, and their families, with official reports and releases about monitoring childhood growth and important milestones, community statistics, living with an ASD, and treatments and further resources for…

Racial bias in research impacts a study's relevancy, validity and reliability, though presently this aspect is not addressed in critical appraisal tools, and consequently appraisers may not take racial bias into account when assessing a paper's quality. Drawing on critical race theory (CRT) tenets that racism is ubiquitous and race a social…

Sickle cell disorder (SCD) is a serious blood disorder that affects millions of people worldwide. It is particularly prevalent in Africa. The condition can be associated with physical and psychological difficulties. There are no studies of psychological interventions for people affected by SCD in Africa where the majority of affected persons live.…

We describe an advanced, inquiry driven undergraduate course in Cancer Biology that combines faculty lectures typical of undergraduate courses with literature-driven discussions typical of graduate courses. As a capstone course, one goal of this course is to integrate knowledge from previous coursework in physiology, cell and molecular biology,…