Article describes basic principles of seismic, electric prospection and electrochemical data complexation, received on the same research objects. The goal of our exploration works is complex exploration of hydrocarbon deposits on arctic shelf. Complex is based on ion-selective electrodes for detection of heavy metal complex anomalies in sea…

Chemistry knowledge can be represented at macro-, micro- and symbolic levels, and learning a chemistry topic requires students to engage in multiple representational activities. This study focused on scaffolding for inter-level connection-making in learning chemistry knowledge with graphical simulations. We also tested whether different sequences…

Teacher questions play an important role in facilitating classroom discourse. Using appropriate question types and proper questioning techniques help to create reflective-active learners. Teacher questions can elicit students' explanations, elaboration of their ideas and thinking, and they can be used to disclose students' misconceptions. Despite…

FlashPhotol is an educational software package that introduces students to the kinetics of transient species and fast reactions. This is achieved by means of a computer-simulated flash photolysis apparatus that comprises all major functional elements and that students can use to perform various experiments. The experimental interface presents a…

An activity is described in which students in the first semester of a two semester organic chemistry laboratory class are introduced to the use of SciFinder. Students are required to determine the structures of three compounds as well as additional information regarding the synthesis of one of them using some of the features available in SciFinder.

Concept maps are effective tools for showing the relations between the concepts and they can be used to make clear the relations between the abstract concepts such as hydrocarbons topic. The aim of this research is to determine the abilities of prospective chemistry teachers' (PCTs) creating concept maps about hydrocarbons. In this research , case…

This study investigated science classroom discourse in terms of the types of teacher discursive moves (TDMs) and the relationships between the types of TDMs and student-led cognitive contributions in different science concepts by considering the classroom context. An experienced seventh-grade science teacher and her 19 students were engaged in…

The present investigation aims to analyze the effect of motivation on students' causal attributions to choose or abandon chemistry when it first becomes optional in the secondary education curriculum in Spain. Attributions to the effect of the family and to the teacher and classroom methodology were found to be common predictors of the choice to…

Evaluation of student written work during summative assessments is an important task for instructors at all educational levels. Nevertheless, few research studies exist that provide insights into how different instructors approach this task. In this study, we characterised variation in chemistry instructors' approaches to the evaluation and…

Intentional reflection is a key component of Community Service Learning (CSL) as it guides students to integrate knowledge of theory with experience in practice. A semester-long chemistry curriculum with an integrated CSL intervention was implemented in a Canadian university to investigate how reflection in the laboratory setting enhances…

While cheminformatics skills necessary for dealing with an ever-increasing amount of chemical information are considered important for students pursuing STEM careers in the age of big data, many schools do not offer a cheminformatics course or alternative training opportunities. This paper presents the Cheminformatics Online Chemistry Course…

There is a strong case to be made that the goal of science is to develop explanatory theories that help us organize our understanding and make predictions about the natural world. What then, is the goal of science education? What is it that we want students to know and be able to do, and how do we achieve these goals? Here, I argue that one…

A system for the construction of double-sided paper models of the 14 Bravais lattices, and important crystal structures derived from them, is described. The system allows the combination of multiple unit cells, so as to better represent the overall three-dimensional structure. Students and instructors can view the models in use on the popular…

How do animals adaptively integrate innate with learned behavioral tendencies? We tackle this question using chemotaxis as a paradigm. Chemotaxis in the "Drosophila" larva largely results from a sequence of runs and oriented turns. Thus, the larvae minimally need to determine (i) how fast to run, (ii) when to initiate a turn, and (iii)…

The shift to remote teaching induced by the COVID-19 pandemic has increased pre-existing academic disparities in the student community, augmenting the disadvantages for students who already experience opportunity gaps. This work describes the implementation of an online chemistry co-class focused on providing educational and social support to…