理解分数(7岁及以上)
Understanding fractions (age 7+)
用数学语言精确交流:正确使用位值和分数词汇,在测量答案中注明单位,并准确使用数学记号。
Communicate with mathematical precision: use correct place-value and fraction vocabulary, specify units in measurement answers, and use notation accurately
学习证据 / Evidence
- 在测量答案中始终注明单位(例如写“35 厘米”而不是“35”)
- 准确使用分数词汇(分子、分母、等价分数)
- 使用正确的记号书写等式,包括 £/p、>、<、= 和分数符号
- Consistently specify units in measurement answers (e.g. '35 cm' not '35')
- Use fraction vocabulary precisely (numerator, denominator, equivalent)
- Write equations with correct notation including £/p, >, <, = and fraction symbols
评估问题 / Assessment
当 {{name}} 给出涉及测量或分数的数学答案时,他们会包含正确的单位——如“3½ 米”或“2.5 千克”——并全程使用正确的符号吗?
When {{name}} gives a maths answer involving measurements or fractions, do they include the correct units — like "3½ metres" or "2.5 kg" — and use the right symbols throughout?