NotesFAQContact Us
Collection
Advanced
Search Tips
50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Showing all 3 results
Peer reviewed Peer reviewed
Direct linkDirect link
Treagust, David F.; Chandrasegaran, A. L.; Zain, Ahmad N. M.; Ong, Eng Tek; Karpudewan, Mageswary; Halim, Lilia – Chemistry Education Research and Practice, 2011
The efficacy of an intervention instructional program was evaluated to facilitate understanding of particle theory concepts among students (N = 190) using a diagnostic instrument consisting of eleven two-tier multiple-choice items in a pre-test--post-test design. The students involved were high school students, undergraduates and postgraduates…
Descriptors: Intervention, Concept Formation, Scientific Concepts, Theories
Peer reviewed Peer reviewed
Direct linkDirect link
Tan, Kim Chwee Daniel; Treagust, David F.; Chandrasegaran, A. L.; Mocerino, Mauro – Chemistry Education Research and Practice, 2010
In chemical kinetics, in addition to the concepts related to kinetics, stoichiometry, chemical equilibrium and the characteristics of the reactants are often involved when comparing the rates of different reactions, making such comparisons very challenging for students at all levels, as well as for pre-service science teachers. Consequently, four…
Descriptors: Kinetics, Chemistry, Stoichiometry, Graphs
Peer reviewed Peer reviewed
Direct linkDirect link
Chandrasegaran, A. L.; Treagust, David F.; Waldrip, Bruce G.; Chandrasegaran, Antonia – Chemistry Education Research and Practice, 2009
A qualitative case study was conducted to investigate the understanding of the limiting reagent concept and the strategies used by five Year 11 students when solving four reaction stoichiometry problems. Students' written problem-solving strategies were studied using the think-aloud protocol during problem-solving, and retrospective verbalisations…
Descriptors: Stoichiometry, Protocol Analysis, Chemistry, Problem Solving