Skip to content
Oak National Academy
Oak National Academy
Teachers
Pupils
New
New
Year 3

Become familiar with scales with different intervals when measuring in grams

I can become familiar with scales with different intervals when measuring in grams.

Download all resources
Share activities with pupils
New
New
Year 3

Become familiar with scales with different intervals when measuring in grams

I can become familiar with scales with different intervals when measuring in grams.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. The mass of objects can be measured in grams.
  2. Different scales can be marked with different intervals.
  3. The mass of objects can be compared using scales.

Common misconception

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.

Keywords

  • 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.

This should be a practical lesson where possible. Expose the children to a variety of scales with different intervals. No need to measure in this lesson; just get children used to putting objects on the scales and noting the movement of the arrow.
Teacher tip

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).

Video

Skip video

Loading...

Starter quiz

Download starter quiz

6 Questions

Q1.
Look at the image showing a brick and a feather. Which is heavier?
An image in a quiz
Correct answer: The brick is heavier than the feather.
The feather is heavier than the brick.
They are the same mass.
Q2.
Look at the image. Which object has greater mass?
An image in a quiz
The egg has the greater mass.
The cake has the greater mass.
Correct answer: The mass of the egg and the cake are the same.
Q3.
One hundred is composed of ten equal parts of .
Correct Answer: 10, ten, Ten
Q4.
Using the number line, match the letter to its number.
An image in a quiz
Correct Answer:A,20

20

Correct Answer:B,50

50

Correct Answer:C,90

90

Q5.
One hundred is composed of five equal parts of .
Correct Answer: 20, Twenty, twenty
Q6.
Look at the number line. Label the missing number.
An image in a quiz
130
Correct answer: 160
175

Exit quiz

Download exit quiz

6 Questions

Q1.
Look at this scale. What are the intervals going up in?
An image in a quiz
Correct Answer: 100s, 100, hundreds, Hundreds
Q2.
Look at the scales. Which number is missing from where the arrow is pointing to?
An image in a quiz
Correct Answer: 600, 600 g, 600g
Q3.
Look at the scales. Which object has a greater mass?
An image in a quiz
The box has the greater mass.
Correct answer: The basket has the greater mass.
Both objects have the same mass.
Q4.
Look at the scales. Which object has the greater mass?
An image in a quiz
Correct answer: The cabbage has the greater mass.
The watermelon has the greater mass.
Both objects have the same mass.
Q5.
Starting with the smallest, put these scales in order of the mass they are showing.
An image in a quiz
1 - A
2 - C
3 - B
Q6.
Starting with the smallest, put these scales in the order of mass that they are showing.
An image in a quiz
1 - B
2 - C
3 - A