Capacity
Capacity, how much a container can hold: comparing by looking, then by pouring, then with improvised units such as cups; the litre and millilitre (1 L = 1000 mL), and reading a measuring cup at eye level with the water; estimating before measuring; and recording capacity in a suitable unit, such as 1030 mL or 1 L 30 mL.
Key words
| Chinese | English |
|---|---|
| 容量 | capacity |
| 容器 | container |
| 升 | litre (L) |
| 毫升 | millilitre (mL) |
| 量杯 | measuring cup |
The 7 short lessons and the chapter test
Lessons are in Chinese for now.
- 甚麼是容量
- 自訂單位
- 升和毫升
- 讀量杯
- 比較容量
- 選擇合適的單位
- 注水和倒水
- 章節測驗 (chapter test)
Sample questions (in Chinese)
Question 1把甲瓶注滿水，然後把水倒進乙瓶。水還未倒完，乙瓶已經滿了。哪個瓶的容量較大？
- 乙瓶
- 兩個瓶一樣大
- 甲瓶
Answer and explanation
答案：C．甲瓶
為甚麼？水倒不完，乙瓶裝的水較少，所以甲瓶的容量較大。
Question 2用同一款杯量度兩個水壺的容量。哪個水壺的容量較大？
- 乙壺
- 甲壺
Answer and explanation
答案：B．甲壺
為甚麼？用同一款杯量度，杯數越多，容量越大。10 杯比 8 杯多，所以甲壺的容量較大。
Question 3填上空格。
7 升 = 毫升
Answer and explanation
答案：7 升 = 7000 毫升
為甚麼？1 升 = 1000 毫升，所以 7 升 = 7 × 1000 毫升 = 7000 毫升。
Question 4量杯裏有多少毫升水？（mL 即是毫升）
毫升
Answer and explanation
答案：450 毫升
為甚麼？量杯每一格是 50 毫升。水面對着 450 的刻度，所以有 450 毫升水。讀刻度時，視線要和水面一樣高。
Based on learning unit 3M3 of the Education Bureau’s Primary Mathematics Curriculum (2017).