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Many buildings around the world are made of bricks.
Either
or
Compare the weight or length or volume of the different bricks you and your friends have.
Now suppose you have two bricks the same.
What is the weight or length or volume of the two together?
What about if you have 3, 4, 5, 6, 7 or 8 bricks?
Explore!
What can you find out?
This problem gives a good opportunity for pupils to take a variety of measurements and then to compare their results. It is also a useful context in which to encourage learners to use their chosen equipment accurately and become more fluent in calculating. The activity then opens out to so children can investigate further and explore relationships and patterns for themselves.
If it's necessary to make some bricks, some pupils may need your support. Alternatively, you could suggest they use some connecting cubes (usually about 2 or 3cm³) to make a brick of their own.