items of questionnaire | AV ± SD | Min | Max | |

1 | Learning time after mathematics class | 28.87 ± 14.2 | 12.5 | 100 |

2 | Holidays learning time (mathematics) | 31.88 ± 17.8 | 12.5 | 100 |

3 | Learning for regular examination of mathematics | 91.61 ± 13.8 | 20.0 | 100 |

4 | About learning mathematics (likes and dislikes) | 57.53 ± 26.5 | 20.0 | 100 |

5 | Impression of mathematics | 72.41 ± 21.5 | 16.7 | 100 |

6 | Approach to mathematics class | 57.52 ± 22.6 | 16.7 | 100 |

7 | Learning before regular examination of mathematics | 76.72 ± 26.1 | 16.7 | 100 |

8 | Review after regular examination of mathematics | 63.07 ± 17.7 | 20.0 | 100 |

9 | Approaches to mathematical applied problems and unsolvable problems | 67.71 ± 19.7 | 20.0 | 100 |