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Hoyles, Celia and Küchemann, Dietmar and Healy, Lulu and Yang, Min (2005) Students' developing knowledge in a subject discipline: insights from combining quantitative and qualitative methods. International Journal of Social Research Methodology, 8 (3). pp. 225-238. ISSN 1364-5579 (print); 1464-5300 (electronic)
Healy, Lulu and Hoyles, Celia (2002) Software tools for geometrical problem solving: potentials and pitfalls. International Journal of Computers for Mathematical Learning, 6 (3). pp. 235-256. ISSN 1382-3892 (print); 1573-1766 (electronic)
Healy, Lulu and Hoyles, Celia (2000) A study of proof conceptions in algebra. Journal for Research in Mathematics Education, 31 (4). pp. 396-428. ISSN 0021-8251
Healy, Lulu and Hoyles, Celia (1999) Visual and symbolic reasoning in mathematics: making connections with computers? Mathematical Thinking and Learning, 1 (1). pp. 59-84. ISSN 1532-7833 (electronic) 1098-6065 (paper)
Noss, Richard and Healy, Lulu and Hoyles, Celia (1997) The construction of mathematical meanings: connecting the visual with the symbolic. Educational Studies in Mathematics, 33 (2). pp. 203-233. ISSN 0013-1954 (print); 1573-0816 (electronic)
Pozzi, Stefano and Healy, Lulu and Hoyles, Celia (1993) Learning and interaction in groups with computers: when do ability and gender matter? Social Development, 2 (3). pp. 222-241. ISSN 0961-205X (print); 1467-9507 (electronic)
Hoyles, Celia and Healy, Lulu (2007) Curriculum change and geometrical reasoning. In: Theorems in school: from history, epistemology and cognition to classroom practice. New Directions in Mathematics and Science Education (1). Sense, Rotterdam, pp. 81-115. ISBN 9077874216 (pbk.)
Healy, Lulu and Hoyles, Celia (2002) A study of proof concepts in algebra. In: Lessons learned from research. National Council of Teachers of Mathematics, Reston, VA, pp. 183-190. ISBN 087353526X
Hoyles, Celia and Healy, Lulu (2000) From construction to deduction: potentials and pitfalls of using software. In: TIME 2000: an international conference on Technology In Mathematics Education: proceedings. University of Auckland, Auckland, New Zealand. ISBN 0868690295
Healy, Lulu and Pozzi, Stefano and Hoyles, Celia (1990) Interdependence and autonomy: aspects of groupwork with computers. In: Learning and Instruction: European research in an international context. Pergamon, Oxford, pp. 239-257. ISBN 0080402526
