Page 23 - Numeracy Skills
P. 23
DOUBLING AND
HALVING
• Children work with a partner. Each have their 6
bricks randomly placed on the desk.
• Teacher calls out any number (up to 6), e.g.
2. Children must place any 2 bricks in front of
them.
• Teacher calls out either “double” or “halve”.
• Child performs the action of either placing 2
bricks to double, or remove a brick to halve.
• Teacher calls out the answer - double is 4
bricks and half is 1 brick.
• In the case of halving 3 or 5 bricks, the children
can show where the half would be. (answer 1½
or 2½ bricks)
Variations:
• Work in groups of 4 to 6 to halve and double
larger numbers.
• The same activity, except use the studs
to halve or double. E.g. How many studs DOUBLING
is half / double using 2 bricks?
AND HALVING
WITH DICE
For this activity you will need dice.
• Children work in groups of 6 and place their bricks
in a pile together. Select one child to start the
game with a dice.
• The first child throws the dice and says the number
that is shown. He / She then builds the number
using DUPLO bricks. E.g. dice shows 4. Place 4
bricks in a row.
• The second child finds and matches the number of
DUPLO bricks - doubling the number of bricks.
• The child must then say the number of bricks. E.g.
The child places another row of bricks next to the
original 4. 4 + 4 is 8. 8 is double. 4 is half of 8.
• The game continues until each child has had 3 or 4
turns to throw the dice and to build the double.
• The game can be extended by using 2 dice.
Variations:
• One dice could have double / half. The other dice
could have numbers. Throw both dice - whatever
number comes up do the action indicated on the
other dice.
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14-06-2021 18:49:27
Book 3_Numeracy Skills.indd 21
Book 3_Numeracy Skills.indd 21 14-06-2021 18:49:27