We need to remember how to order numbers to help us in this lesson. Let's try this problem to practice.
Order these numbers from largest to smallest.
73,\, 33, \, 37
671,\, 167, \, 617
Summary of the idea
We could weigh each object in a group to put them in order but we could also use balance scales. We can work out which object is heavier or lighter out of two objects, then compare it to another object.
In the video, we'll use the mass to compare objects, as well as balance scales.
We want to order these animals from heaviest to lightest.
\quad \quad\quad\quad\quad\quad\quad\quadCockatoo \quad \quad\quad\quad\quad\quad\quad\quad Sparrow \quad\quad \quad\quad\quad\quad\quad\quad\quad Pigeon
Which of these animals is the heaviest?
Which of these animals is the second heaviest?
Which of these animals is the lightest?
To put objects in order by mass, we need to make sure we are using the same unit of measurement, such as grams, for each object we are comparing.
measures, records, compares and estimates the masses of objects using kilograms and grams