Max Maths, Year 3, Learn together, Review of units of volume (2)

In a Year 3 mathematics lesson, pupils are introduced to the concept of measuring liquid volumes using standard units. The lesson uses a practical example where a bottle of water is poured into a measuring cylinder to demonstrate volume measurement. The cylinder is marked with millilitres (ml), a common unit for measuring smaller volumes of liquid. The example shows that the water bottle contains 1,000 millilitres of water, which is equivalently written as 1,000 ml. This visual representation helps children understand that 1,000 millilitres make up 1 litre, establishing the relationship between these two units of volume.

Building on this understanding, the lesson further explains that the volume of liquid can also be measured in litres, which is a larger standard unit of volume. To illustrate this, two bottles with a combined volume of 2 litres of water are presented. Each bottle, when emptied into the measuring cylinder, reaches the 1,000 ml mark, indicating that each has a volume of 1 litre ('l' stands for litre). This practical approach helps students visualise and grasp the concept that 1 litre is equivalent to 1,000 millilitres and that volumes can be added together, such as combining the volumes of two 1-litre bottles to make 2 litres in total.