Mathematics Measurement Procedural 9–10 yrs

Converting measurement units (age 9+)

测量单位换算（9岁以上）

Description

Know relative sizes of measurement units within one system (km/m/cm/mm, kg/g, l/ml, hr/min/sec); convert between different metric units and express measurements in terms of a smaller unit; record equivalents in conversion tables

Mastery Evidence

✓ Convert 3.5 km to 3,500 m
✓ Complete a conversion table for cm and mm: (1,10), (2,20), (3,30)...
✓ Express 2 kg 350 g as 2,350 g

Assessment Prompt

If your child needs to convert 3.5 kg to grams, can they do it confidently — and also fill in a simple two-column table showing the same measurements in kg and g?