Explain that items can be compared using weight and mass | Maths

Starter quiz

Are these sets the same or not the same?

the same

not the same ✓
Are these sets the same or not the same?

the same ✓

not the same
Which set has more counters?

Set A ✓

Set B

They have the same amount of counters.
Which set has fewer counters?

Set A

Set B

They have the same amount of counters. ✓
What does taller than mean?

One object has a greater height than another. ✓

One object has travelled further than another.
What does longer than mean?

One object has a greater length than another. ✓

One object has travelled further than another.

What does heavier mean?

One object has a greater mass than another. ✓

One object has a greater length than another.

One object has a greater height than another.
Which animal is heavier - an elephant or a mouse?

an elephant ✓

a mouse

they weigh the same
What can you say about the giraffe and snail?

A snail is heavier than a giraffe.

A giraffe is heavier than a snail. ✓

A snail is lighter than a giraffe ✓

A giraffe is lighter than a snail.
Look at the balance. Which one is heavier, the stone or the feather?

the stone ✓

the feather

they weigh the same
Look at the balance. Which one is lighter, the leaf or the brick?

the leaf ✓

the brick

they weigh the same
Look at the balance. Which one is heavier, the twig or the feather?

the twig

the feather

they weigh the same ✓

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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'.

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.