There is an abundance of scholarship documenting educators' uses of for-profit social media platforms for professional learning, but little is known about how inauthentic accounts affect those experiences. We studied 83 state-sponsored accounts' interactions with the teacher-focused #Edchat hashtag by analyzing their profiles, profiles of accounts…

Teaching English language learners has long presented challenges for teachers tasked with bringing these students to a level of language comprehension comparable to that of native speakers. These challenges and issues can lead to difficulty comprehending core academic topics for those learning the English language. "Optimizing Elementary…

The target of difficulty of the Educational Technology Center (ETC) Heat and Temperature Group is basic thermal physics, particularly the differentiation between heat and temperature. High school teachers often find that thermal concepts are very difficult for their students to master and attribute students' difficulties at least in part to the…

Two classroom studies, one conducted in the spring of 1985 and the second in the spring of 1986, showed that many high school students do not differentiate between heat and temperature; instead, they have a single concept that contains some of the features of heat and some of the features of temperature. Because the distinction between these two…

The concept of the density of a material has an important role in elementary and secondary school science curricula, but it is a difficult concept to grasp. This project explores why this should be and whether there are some simpler, more accessible notions which can serve as the basis for building a concept of density in students' minds during…