“Variation problems” and their roles in the topic of fraction division in Chinese mathematics textbook examples X Sun Educational Studies in Mathematics 76, 65-85, 2011 | 137 | 2011 |

Cultural transposition of Chinese lesson study to Italy: An exploratory study on fractions in a fourth-grade classroom MG Bartolini Bussi, C Bertolini, A Ramploud, X Sun International Journal for Lesson and Learning Studies 6 (4), 380-395, 2017 | 61 | 2017 |

FROM “EXPLORING THE MIDDLE ZONE” TO “CONSTRUCTING A BRIDGE”: EXPERIMENTING IN THE SPIRAL *BIANSHI* MATHEMATICS CURRICULUMNY Wong, CC Lam, XH Sun, AMY Chan International Journal of Science and Mathematics Education 7, 363-382, 2009 | 45 | 2009 |

A dialogue between cultures about task design for primary school MG Bartolini, S Xuhua, A Ramploud Task design in Mathematics Education: ICMI Study 22, 551-560, 2013 | 42 | 2013 |

Building the foundation: Whole numbers in the primary grades MGB Bussi, XH Sun Cham: Springer International Publishing AG, 2018 | 31* | 2018 |

美国数学教育中的 “数学日记” 孙旭花 广州师院学报: 社会科学版, 48-50, 1997 | 31 | 1997 |

An insider’s perspective:“Variation problems” and their cultural grounds in Chinese curriculum practice X Sun Journal of Mathematics Education 4 (1), 2023 | 30 | 2023 |

问题变式：结构与功能的统一 张奠宙孙旭花， 黄毅英， 林智中， 课程．教材．教法 2006 (5期), 38-42页, 2006 | 25* | 2006 |

Bridging whole numbers and fractions: Problem variations in Chinese mathematics textbook examples XH Sun ZDM 51 (1), 109-123, 2019 | 20 | 2019 |

数学技术对于新世纪数学教育的意义 孙旭花， 谢文彪 数学教育学报 10 (2), 68-71, 2001 | 20 | 2001 |

Language and cultural issues in the teaching and learning of WNA XH Sun, MG Bartolini Bussi Building the foundation: Whole numbers in the primary grades: The 23rd ICMI …, 2018 | 16 | 2018 |

问题变式: 中国数学教材问题设计之特色 孙旭花 数学教育学报 21 (3), 54-59, 2012 | 14 | 2012 |

Bianshi Problem as the Bridge from'Entering the Way'to'Transcending the Way'!: The Cultural Characteristic of Bianshi Problem in Chinese Math Education S Xuhua, W Ngai-Ying, L Chi-chung Research in Mathematical Education 9 (2), 153-173, 2005 | 14 | 2005 |

Regenerate the proving experiences: an attempt for improvement original theorem proof construction of student teachers by using spiral variation curriculum X Sun, K Chan Proceedings of the ICMI Study 19, 172-177, 2009 | 13 | 2009 |

The structures, goals and pedagogies of “variation problems” in the topic of addition and subtraction of 0–9 in Chinese textbooks and reference books X Sun Proceedings of the Eighth Congress of European Research in Mathematics …, 2013 | 12 | 2013 |

A complementary survey on the current state of teaching and learning of Whole Number Arithmetic and connections to later mathematical content XH Sun, YP Xin, R Huang ZDM 51, 1-12, 2019 | 11 | 2019 |

“一题多解” 之再升华 螺旋变式课程设计理论介绍——以三角形中位线定理推导为例 孙旭花， 陈嘉豪， 梁永贤， 曾震宇， 郑少斌， 黄家婵， 梁明峰， 冯国浩， ... 数学教育学报 17 (6), 21-28, 2008 | 11 | 2008 |

Different features of task design associated with goals and pedagogies in Chinese and Portuguese textbooks: The case of addition and subtraction S Xuhua, TB Neto, LE Ordóñez | 9 | 2014 |

Renew the Proving Experiences: An experiment for enhancement of a trapezoid area formula proof constructions of student teachers by" One problem multiple solutions X Sun Proceedings of the International Commission on Mathematical Instruction …, 2009 | 9 | 2009 |

变式的角度 数学的眼光 孙旭花， 黄毅英， 林智中 数学教学, 13-16, 2007 | 9 | 2007 |