Analysis of text difficulty in lower-secondary chemistry textbooks
Literature Information
Martin Rusek, Karel Vojíř
This paper focuses on the procedure and results for analyzing text-difficulty in lower-secondary chemistry textbooks in the Czech Republic. The authors use established methodology for text-difficulty analysis by Nestler, adapted by Průcha and Pluskal by adding a second independent analyser to improve reliability. Some textbooks do not follow the expected trend of either text-difficulty coherence or increasing text-difficulty between books for the 8th and 9th grade. No trend in topic difficulty was found either. The results show that learning outcomes may differ significantly when different books are used, despite the fact that they are supposed to support the same curriculum. For this reason, the results serve to support not only teachers when selecting a textbook, but also researchers as a starting point for lesson observations.
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Chemistry Education Research and Practice

Chemistry Education Research and Practice (CERP) is the journal for teachers, researchers and other practitioners at all levels of chemistry education. It is published free of charge electronically four times a year, thanks to sponsorship by the Royal Society of Chemistry's Education Division. Coverage includes the following: Research, and reviews of research, in chemistry education Evaluations of effective innovative practice in the teaching of chemistry In-depth analyses of issues of direct relevance to chemistry education The objectives of the journal: To provide researchers with the means to publish their work in full in a journal exclusively dedicated to chemistry education To offer teachers of chemistry at all levels a place where they can share effective ideas and methods for the teaching and learning of chemistry To bridge the gap between the two groups so that researchers will have their results seen by those who could benefit from using them, and practitioners will gain from encountering the ideas and results of those who have made a particular study of the learning process














