Understanding ongoing chemical processes in the laboratory requires constant shifting between different representational levels--the macroscopic, submicroscopic, and symbolic levels--and analysis of the various mechanistic features of each of these levels. Thus, the ability to explain observations of chemical phenomena with regard to their…

Social media are a highly visible factor in the daily lives of our students. Why should teachers not take advantage of this and develop teaching and learning materials that use the designs found in such media to contextualise science learning? This article suggests some ideas for creating lab instructions using social media design as an innovative…

In many Western countries, non-formal education has become increasingly recognized as a valuable addition to the traditional educational system. In recent years, a special form of non-formal student laboratories (Schülerlabor) has emerged in Germany to promote primary and secondary practical science learning. This paper describes a developmental…

Findings are presented from a study of the effectiveness of a training program designed to increase nonverbal expressiveness, during expository teaching/lecturing, in the nonverbal channels: voice delivery, eye expression, gaze, facial expression, gesturing, posture, and movement. The program includes laboratory practice sessions, characterized by…

This paper summarizes a pair of studies titled "The Impact of Longer Term Intervention on Reforming the Approaches to Instruction in Chemistry by Urban Teachers of Physical and Life Sciences at the Secondary School Level" (William J. Priestley, Holly D. Priestley, and Joseph S. Schuckler) and "Profile of Instructional Practices…

A description of the Television Training Center at the Sender Freies Berlin, which has been providing theoritical and practical training to television staff from third world countries. (Author/HB)