measurement · Foundation · AC9MFM01
Compare lengths, capacities and masses
To compare lengths, line the objects up so they all start at the same place, then see which one reaches furthest. If they do not start together, look at both ends. To compare how much jugs hold, pour each one into the same-sized glass and compare the water levels: a tall jug is not always the one that holds most. To compare masses, use a balance. The heavier side goes down. With two balances, put all the objects in order to find the heaviest or lightest.
Sample questions
Which ribbon is the longest?
- All the ribbons start at the same line, so compare where they end.
- The red ribbon ends furthest to the right.
- The red ribbon is the longest.
Answer: red
Which ribbon is the longest?
- All the ribbons start at the same line, so compare where they end.
- The blue ribbon ends furthest to the right.
- The blue ribbon is the longest.
Answer: blue
Which ribbon is the longest?
- All the ribbons start at the same line, so compare where they end.
- The green ribbon ends furthest to the right.
- The green ribbon is the longest.
Answer: green