A word, even when considered monosemic, generally has a cluster of meanings, depending on the mental representation of the referent by the speaker/writer or listener/reader. The variation is even more noticeable across cultures. This paper investigates the different ways in which cultural knowledge helps in the interpretation of English lexical items. After a brief review of the traditional World Englishes structural perspective, the paper analyses the various ways in which the schema helps in the construction of lexical meaning: it helps to decode the denotative meaning of some words with possible multiple interpretations; to perceive the referential boundaries; to understand the connotative meaning; to modulate meaning, demoting some features and promoting others; to understand the physical elements which contribute to the mental representation of some words; to perceive the bodily movements and other paralinguistic elements which contribute to the construction of the meaning of some words; to perceive the salience of a word within a cultural community; to perceive and predict collocates; to perceive cultural assumptions; to perceive political politeness and taboos; to distinguish transactional language from interactional language, and so on. The study is shown to have implications for lexicography and for English Language teaching.
[Copyright of Journal of Multilingual and Multicultural Development is the property of Routledge. Full article may be available at the publisher's website: http://dx.doi.org/10.1080/01434630802147882]

Procedural and conceptual knowledge for solving a basic quantitative problem in chemistry by expert and novice secondary school students is reported. Experts use a known qualitative procedure with a working forwards strategy to obtain a numerical solution. Novices attempt a means-ends analysis strategy which is often unsuccessful, so switch to a simple formula-driven working forwards strategy to obtain a numerical solution, the qualitative procedure being either omitted or only partially formed. A gradual shift in strategies and representations used as expertise increases was observed. Differences with findings for problem solving in physics were also found. Experts' conceptual knowledge is accurate and linked to underlying procedural knowledge, whereas novices have misconceptions and a poor understanding of formulae. Conceptual understanding, use of a qualitative procedure, and the type of strategy used, are major differences between experts and novices. Instructional techniques are suggested in these areas to enhance problem solving and teaching.
[Copyright of International Journal of Science Education is the property of Routledge. Full article may be available at the publisher's website:
http://dx.doi.org/10.1080/095006999290787]