Become familiar with scales with different intervals when measuring in grams | Maths

Starter quiz

Look at the image showing a brick and a feather. Which is heavier?

The brick is heavier than the feather. ✓

The feather is heavier than the brick.

They are the same mass.
Look at the image. Which object has greater mass?

The egg has the greater mass.

The cake has the greater mass.

The mass of the egg and the cake are the same. ✓
One hundred is composed of ten equal parts of ______.

'10' ✓
Using the number line, match the letter to its number.

A

⇔

20 ✓

B

⇔

50 ✓

C

⇔

90 ✓
One hundred is composed of five equal parts of ______.

'20' ✓
Look at the number line. Label the missing number.

130

160 ✓

175

Look at this scale. What are the intervals going up in?

'100s' ✓
Look at the scales. Which number is missing from where the arrow is pointing to?

'600' ✓
Look at the scales. Which object has a greater mass?

The box has the greater mass.

The basket has the greater mass. ✓

Both objects have the same mass.
Look at the scales. Which object has the greater mass?

The cabbage has the greater mass. ✓

The watermelon has the greater mass.

Both objects have the same mass.
Starting with the smallest, put these scales in order of the mass they are showing.

1

⇔

A

2

⇔

C

3

⇔

B
Starting with the smallest, put these scales in the order of mass that they are showing.

1

⇔

B

2

⇔

C

3

⇔

A

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When comparing masses - if the scales have different intervals or the zero is in different places.

Remind children that the scale is a number line and we always read number lines from zero; the further the arrow travels, the greater mass.

Mass - Mass is a measure of how much matter something contains. It is measured by how much something weighs. Mass can be measured in grams.
Gram - A gram is a metric measure of mass (which we feel as weight). A paper clip weighs about 1 gram. The abbreviation is g.
Interval - Intervals are the spaces between given numbers. They include all given numbers between the numbers marked at the start and end.