☰ Contents · Mathematics

Mass (kilograms) and capacity (litres)

Lessons 104–107 · 4 lessons · I.V. Repyova, Y.V. Zemlina. Mathematics Grade 1, Parts 1–4. Novda Edutainment, 2023
106

Capacity and the litre

Textbook Part 3, pp. 66–67
GoalCompare how much liquid containers hold; meet the litre.
New words
capacity / volume · hajm (sig‘im)litre (l) · litr (l)bucket · chelakjug · ko‘za
Explanation

How much liquid a container holds is its capacity. Capacity is measured in litres: 1 l. To find which container holds more, fill one with water and pour it into the other.

Worked examples
A barrel had 50 l of water and 20 l more was added: 50 + 20 = 70 l.
Driving from Tashkent to Chirchiq uses 6 l of petrol. There and back: 6 + 6 = 12 l. The car has 15 l — enough, with 3 l to spare.
Class activity

Water experiment: pour water from a 1-litre bottle into glasses. Children count how many glasses make 1 litre.

Practice
1
50 l + 20 l = ?
2
A bucket holds 9 l, a jug 5 l less, and a jar 3 l less than the jug. The jar holds?
3
A jug had 12 l of oil. 6 l was taken out and 8 l poured in. Now?
4
Which holds more: a tea bowl or a teapot?