Mathematics
Measurement
Conceptual
10–11 yrs
Miles & Kilometres
英里与千米
Description
Convert between miles and kilometres using the approximate relationship (5 miles ≈ 8 km)
Mastery Evidence
- Convert 40 miles to approximately 64 km
- Explain why the conversion factor between miles and km is approximately 1.6
- Use the miles↔km relationship to compare a 10 km race with a 6-mile run
Assessment Prompt
If your child is driving 40 miles to a theme park, can they use the rule that 5 miles ≈ 8 km to estimate roughly how many kilometres that is?
Prerequisites 2
Metric & Imperial Conversion
英里与千米的换算是五年级英制/公制近似换算的延伸
Decimal place value
换算系数1.6涉及小数乘法运算
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