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# W questions covered by H

In the *Big Ideas* section of this resource, there is an activity called * Covered by H*.

Here is part of the dialogue that took place when a year 4 teacher used some W questions with the H-shape provided.

Teacher: | What makes you think the first box is 23? |

Student: | It comes after 22. |

Teacher: | So what if it was in this row? Tell me what you are thinking. |

Student: | All that row starts with 20 and this starts with 30 so it would be 33. |

Teacher: | What stayed the same, and why? |

Student: | The three because that row [pointing vertically] is all threes. |

Teacher: | Three… |

Student: | Units? Units. |

Teacher: | And where would the five units column be? [Student points] Good, so what can you tell me about the horizontal rows — across like this — and the vertical columns like this? How could you describe the rule, the pattern? |

Student: | Horizontal, across, they go up by ones, in order. Tens is vertical, vertical, down, goes up by tens: 15, 25, 35, 45. |

Teacher: | Okay. So what if this vertical column was 115, instead of 15. Where would 135 be, and why? |

Student: | 135. Okay. So that's 115, 125, 135 [pointing correctly]. |

Teacher: | Good. Why? |