Pamela Cowan, Hugh Morrison, F. McBride. Evidence of a Spiral Curriculum Using a Mathematical Problem-Solving Tool. Interactive Learning Environments, 6(3):205-224, 1998. [doi]
@article{CowanMM98,
title = {Evidence of a Spiral Curriculum Using a Mathematical Problem-Solving Tool},
author = {Pamela Cowan and Hugh Morrison and F. McBride},
year = {1998},
doi = {10.1076/ilee.6.3.205.3601},
url = {http://dx.doi.org/10.1076/ilee.6.3.205.3601},
researchr = {https://researchr.org/publication/CowanMM98},
cites = {0},
citedby = {0},
journal = {Interactive Learning Environments},
volume = {6},
number = {3},
pages = {205-224},
}