测量质量与重量
Measuring mass and weight
使用非标准和标准单位测量并开始记录质量/重量
Measure and begin to record mass/weight using non-standard and standard units
学习证据 / Evidence
- 用天平比较两个物体的轻重
- 使用非标准单位测量质量(例如:这本书的重量相当于5个立方块)
- 开始认读简单的质量刻度
- Use a balance to compare masses of two objects
- Measure mass using non-standard units (e.g. 'this book weighs 5 cubes')
- Begin to read a simple scale for mass
评估问题 / Assessment
如果{{name}}用天平比较两个物体,能说出哪个更重吗?如果给{{name}}100克的砝码,能让物体在天平上保持平衡吗?
If {{name}} uses balance scales to compare two objects, can they tell you which is heavier — and if given weights like 100g, can they balance an object on the scale?