Mathematics
Measurement
Procedural
4–6 yrs
Measuring mass and weight (age 4+)
测量质量与重量（4岁以上）
Description
Compare two objects directly by mass or weight and describe the difference using language such as heavy, light, heavier than, lighter than
Mastery Evidence
- Heft two objects and say which is heavier/lighter
- Use a simple balance to compare the weight of two objects
- Describe one object as 'heavier than' another
Assessment Prompt
If your child holds a bag of apples in one hand and a feather in the other, can they tell you which is heavier and use words like "much heavier than" to describe the difference?
Prerequisites 1
Measurable Attributes of Objects
比较质量与重量，首先需要将质量确定为一种可测量的属性
Unlocks 1
Measuring mass and weight
