@inbook{df7445dcfa4449fb8385943a07819b8f,
title = "MULTIPLICATIVE REASONING, RATIO AND DECIMALS: A 30-YEAR COMPARISON OF LOWER SECONDARY STUDENTS' UNDERSTANDINGS",
abstract = "In this paper, we discuss early results of a large-scale survey of attainment in multiplicative reasoning of 11-14 year olds in England. As part of Phase 1 of Increasing Student Competence and Confidence in Algebra and Multiplicative Structures (ICCAMS), tests were administered to a sample of 3000 children in June and July 2008. The tests used items developed during the 1970s for the Concepts in Secondary Mathematics and Science (CSMS) study (Hart, 1981). This enables a comparison of students' current attainment with that of 30 years ago. Results suggest that overall there has been very little change to attainment across the 30-year period. There are a higher proportion of very low performances than there were in 1976/7. Current attainment is higher in the decimals, but lower infractions.",
author = "Jeremy Hodgen and Dietmar Kuechemann and Margaret Brown and Robert Coe",
year = "2010",
language = "English",
isbn = "*****************",
series = "PME 34 BRAZIL: PROCEEDINGS OF THE 34TH CONFERENCE OF THE INTERNATIONAL GROUP FOR THE PSYCHOLOGY OF MATHEMATICS EDUCATION, VOL 3",
publisher = "INT GRP PSYCHOL MATH EDUC",
pages = "89 -- 96",
booktitle = "Unknown",
note = "34th Conference of the International-Group-for-the-Psychology-of-Mathematics-Education ; Conference date: 18-07-2010 Through 23-07-2010",
}