New
New
Year 1
Explain that items can be compared using weight and mass
I can compare items according to their mass.
New
New
Year 1
Explain that items can be compared using weight and mass
I can compare items according to their mass.
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Lesson details
Key learning points
- Know the language used when comparing mass, the ___ is heavier / lighter than the ___.
- Know when comparing items that are equal to each other in mass, we use the language of 'the same' or 'is equal to'.
Keywords
Heavier than - an object has more weight than another
Lighter than - an object has less weight than another
The same - exactly the same amount or value
Equal to - exactly the same amount or value
Common misconception
May find it hard to feel whether an object is heavier, lighter or equal to the mass of another.
Model using yourself as a scale in different ways - using both hands, picking one object up after another, then having one in each hand.
In this lesson, we compare objects children may have never seen before. Try to share real-life pictures / videos of the objects to help children visualise their size.
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).
Lesson video
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Starter quiz
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6 Questions
Q1.
Are these sets the same or not the same?
the same
Q2.
Are these sets the same or not the same?
not the same
Q3.
Which set has more counters?
Set B
They have the same amount of counters.
Q4.
Which set has fewer counters?
Set A
Set B
Q5.
What does taller than mean?
One object has travelled further than another.
Q6.
What does longer than mean?
One object has travelled further than another.
Exit quiz
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6 Questions
Q1.
What does heavier mean?
One object has a greater length than another.
One object has a greater height than another.
Q2.
Which animal is heavier - an elephant or a mouse?
a mouse
they weigh the same
Q3.
What can you say about the giraffe and snail?
A snail is heavier than a giraffe.
A giraffe is lighter than a snail.
Q4.
Look at the balance. Which one is heavier, the stone or the feather?
the feather
they weigh the same
Q5.
Look at the balance. Which one is lighter, the leaf or the brick?
the brick
they weigh the same
Q6.
Look at the balance. Which one is heavier, the twig or the feather?
the twig
the feather