Modelling mathematical argumentation: The importance of qualification M Inglis, JP Mejia-Ramos, A Simpson Educational Studies in Mathematics 66 (1), 3-21, 2007 | 331 | 2007 |

What is the object of the encapsulation of a process? D Tall, M Thomas, G Davis, E Gray, A Simpson The Journal of Mathematical Behavior 18 (2), 223-241, 1999 | 247 | 1999 |

CONVERGENCE OF SEQUENCES AND SERIES 2 L Alcock, A Simpson Educational Studies in Mathematics 58 (1), 77-100, 2005 | 230* | 2005 |

Convergence of sequences and series: Interactions between visual reasoning and the learner's beliefs about their own role L Alcock, A Simpson Educational Studies in Mathematics 57 (1), 1-32, 2004 | 230 | 2004 |

A search for understanding JM Duffin, AP Simpson The Journal of Mathematical Behavior 18 (4), 415-427, 2000 | 153 | 2000 |

Definitions: dealing with categories mathematically L Alcock, A Simpson For the Learning of Mathematics 22 (2), 28-34, 2002 | 135 | 2002 |

Towards a definition of attitude: the relationship between the affective and the cognitive in pre-university students K Daskalogianni, A Simpson PME CONFERENCE 2, 2-217, 2000 | 122 | 2000 |

Convergence of Sequences and Series 2: Interactions between Nonvisual Reasoning and the Learner L Alcock, A Simpson Educational Studies in Mathematics 58 (1), 24, 2005 | 98* | 2005 |

Convergence of sequences and series 2: Interactions between nonvisual reasoning and the learner’s beliefs about their own role L Alcock, A Simpson Educational Studies in Mathematics 58 (1), 77-100, 2005 | 98 | 2005 |

Does generating examples aid proof production? P Iannone, M Inglis, JP Mejía-Ramos, A Simpson, K Weber Educational Studies in Mathematics, 1-14, 2011 | 78 | 2011 |

The misdirection of public policy: Comparing and combining standardised effect sizes A Simpson Journal of Education Policy 32 (4), 450-466, 2017 | 77 | 2017 |

The summative assessment diet: how we assess in mathematics degrees P Iannone, A Simpson Teaching Mathematics and its Applications, 2011 | 68 | 2011 |

Conditional inference and advanced mathematical study M Inglis, A Simpson Educational Studies in Mathematics 67 (3), 187-204, 2008 | 62 | 2008 |

Natural, conflicting and alien. JM Duffin, AP Simpson The Journal of Mathematical Behavior, 1993 | 56 | 1993 |

The Warwick analysis project: Practice and theory L Alcock, A Simpson The teaching and learning of mathematics at university level, 99-111, 2001 | 52 | 2001 |

Conditional inference and advanced mathematical study: Further evidence M Inglis, A Simpson Educational Studies in Mathematics 72 (2), 185-198, 2009 | 50 | 2009 |

Mathematicians and the selection task M Inglis, A Simpson Proceedings of the 28th International Conference on the Psychology of …, 2004 | 47 | 2004 |

The surprising persistence of Biglan's classification scheme A Simpson Studies in Higher Education 42 (8), 1520-1531, 2017 | 45 | 2017 |

Students' preferences in undergraduate mathematics assessment P Iannone, A Simpson Studies in Higher Education, 1-22, 2014 | 37 | 2014 |

The anatomy of a mathematical proof: Implications for analyses with Toulmin’s scheme A Simpson Educational studies in mathematics 90 (1), 1-17, 2015 | 36 | 2015 |