规律概括
Generalising Patterns
能识别并运用重复推理来概括规律:发现计算规律,描述序列规则,并利用已知数学事实预测结果。
Recognise and use repeated reasoning to generalise: spot calculation patterns, describe rules for sequences, and predict results using known mathematical facts
学习证据 / Evidence
- 利用已知的加倍事实推出接近加倍的结果(例如 6 + 7 = 6 + 6 + 1 = 13)
- 发现任意两位数减去10,十位数字都会减少1
- 描述出规律,并用它来继续或预测(例如“每次加5,个位数字就在0和5之间交替”)
- Use a known doubles fact to derive a near-doubles answer (e.g. 6 + 7 = 6 + 6 + 1 = 13)
- Notice that subtracting 10 from any two-digit number always reduces the tens digit by 1
- Describe a rule for a pattern and use it to extend or predict (e.g. 'each time we add 5, the ones digit alternates between 0 and 5')
评估问题 / Assessment
当{{name}}在练习乘法表或数字规律时,会不会发现捷径——比如“如果6×7=42,那么6×8一定是48”——并利用已知事实推出还没背过的算式?
When {{name}} is practising times tables or number patterns, do they spot a shortcut — like "if 6 × 7 = 42, then 6 × 8 must be 48" — and use known facts to work out ones they haven't memorised yet?