@article{discovery10001730,
         journal = {Micromath},
          number = {2},
          volume = {20},
            note = {This document has been closed because the permission of the publisher has not been verified.},
            year = {2004},
           title = {Thinking in process},
           pages = {17--23},
            issn = {0267-5501},
          author = {Mor, Yishay and Noss, Richard and Hoyles, Celia and Kahn, Ken and Simpson, Gordon},
             url = {https://discovery.ucl.ac.uk/id/eprint/10001730/}
}