Max Maths, Year 3, Learn together, Converting between grams and kilograms (2)

In a Year 3 mathematics lesson, students learn to convert between grams and kilograms with practical examples. They are presented with an exercise that involves a television weighing 7,288 grams. To make sense of this mass, the students break it down into two parts: 7,000 grams and 288 grams. This is based on the knowledge that 1,000 grams are equivalent to 1 kilogram. Therefore, they can easily convert 7,000 grams into 7 kilograms. By adding the remaining 288 grams, the total mass of the television is understood to be 7 kilograms and 288 grams. This method helps students visualise and comprehend the conversion process in a clear and manageable way.

Another example provided for the students to practice their conversion skills is Han's school bag, which has a packed mass of 3 kilograms and 570 grams. To find out the total mass in grams, the students learn to convert the kilograms into grams by recognising that 1 kilogram equals 1,000 grams. Thus, 3 kilograms is the same as 3,000 grams. By adding the 570 grams to the converted amount, they calculate that Han's school bag has a total mass of 3,570 grams. These exercises are designed to reinforce the relationship between grams and kilograms and to enable students to confidently convert between these units of mass.