Compare and order measurements of mass
I can compare and order measurements of mass.
Compare and order measurements of mass
I can compare and order measurements of mass.
Lesson details
Key learning points
- When the units are the same, you can compare masses in the same way as we compare 2-digit numbers.
- When the units are the same, you can order masses in the same way as we order 2-digit numbers.
- When the units are different, you can compare masses by looking at the unit rather than the numbers.
Keywords
Lighter - When one object has less mass than another, it is lighter.
Lightest - When an object has the least mass than all the others in a set, it is the lightest.
Heavier - When one object has more mass than another, it is heavier.
Heaviest - When an object has the greatest mass than all the others in a set, it is the heaviest.
Common misconception
Children often believe that the size of the item relates to its mass and that a larger item will always be heavier than a smaller item.
Explore examples where the larger item is lighter and the smaller item is heavier to address this misconception. For example, compare the mass of an inflated balloon with a stone, or an empty box with a small bag full of coins.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
the heaviest object.
the lightest object.
heavier than the beanbag but lighter than the book.
