While lecture demonstrations have been conducted in chemistry classrooms for hundreds of years, little research exists to document the frequency with which such demonstrations are employed or their effect on learners' motivation and performance. A mixed-methods research study was performed, using quantitative and qualitative survey data, along…

There has been increased interest in the transformation of post-secondary level instructional practices in STEM from more traditional to evidence-based practices that are more aligned with how learning occurs. Research has shown that instructional practices are linked to student learning outcomes even when content is unchanged; therefore,…

This study compares students' explanations of the oxidation-reduction reaction between silver nitrate and copper metal after viewing a chemical demonstration and one of four different particulate-level computer animations. The animations differed in the way the ionic charges were depicted (shown or omitted) and the way the transferred electrons…

This study uses graphs of conductivity measured by a microcomputer-based laboratory (MBL) to promote students' macro, micro, and symbolic representations when learning about net ionic reactions (NIR). A total of 54 students, aged 14-15 years old participated in this research, and were randomly divided into an experimental group (N = 27) and a…

This study explores teachers' thinking about practical work, especially in regards to the types of practical work they privilege in their teaching of chemistry to support students in their learning. It seeks to investigate the view that practical work, especially the type of practical work selected, is "unthinkingly" and…