Estimate then measure mass and volume and record in a table | Maths

Starter quiz

Look at these objects. Which is heavier?

The pound coin is heavier.

The pineapple is heavier. ✓

They both have the same mass.
These containers are full to capacity. Starting with the smallest, put the containers in order of the volume of liquid that they contain.

1

⇔

B

2

⇔

C

3

⇔

A
What is the mass of this bowl of cereal?

220 g

240 g ✓

250 g
This jug was filled to its capacity. Some liquid was spilt. How much liquid was spilt?

10 ml

20 ml

25 ml

50 ml ✓
Look at this table of data. What is the last animal in the column with the title 'Pet'?

'Rabbit' ✓
Look at this same table of data. Look along the row for 'Fish'. How many children own fish?

10

8

2 ✓

3

Look at this table. Which object has the greatest mass?

Mug

Bowl

Plate ✓

Spoon
Look at this table. What is the estimated mass of the spoon?

'10 g' ✓
Look at this table. Starting with the object with the smallest actual mass, put the objects in order of mass.

1

⇔

Spoon

2

⇔

Bowl

3

⇔

Mug

4

⇔

Plate
By comparing the mass to objects of known mass, Jacob estimates the mass of a pair of sunglasses to be 20 g. Sophia estimates them to have a mass of 90 g. Whose estimate was more accurate?

Jacob's estimate was more accurate. ✓

Sophia's estimate was more accurate.
Look at this table showing the estimated and actual volume of water in some containers. What is the total volume of water in the cup and the kettle?

'2 L 300 ml' ✓
Look at this table. What is the difference in volume between the estimate and actual volume of the jug?

1 L 149 ml

150 ml ✓

2 L 150 ml

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Estimating is important. If we estimate accurately, it helps us check if our actual measurements are accurate.
We can record our measurements in a table, which is a presentation of information so data can be interpreted easily.

Children may estimate incorrectly or confuse where to record their measurements in the table.

When estimating, hold an item of known mass in one hand and the unknown in the other - compare them. Take care when reading table headings.

Estimate - An estimate is a given value, number or quantity that is near to the true amount; it is a number close enough to the right answer.
Table - A table is data (a collection of numbers, words, measurements and descriptions of things) arranged in rows and columns.