Page 190 - ICSE Math 4

(b)
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Solu on: (a)

1 2 1 2 2 1
Observe that the shapes in the given pa ern is growing by 1 2, 1 2 2, .....
Therefore, the rule is to add one small square to the already exis ng unit
of the pa ern.

So, the shape pa ern will be:

(b)

1 2 3
Observe that the pa ern is growing by adding 1 more shape similar to
one given at the beginning. Therefore, the rule followed in the given
pa ern is to add 1 similar shape to the already exis ng shape.

So, the shape pa ern will be:

Reducing Shape Pattern

In a reducing shape pa ern, the pa ern decreases due to the reduc on of a new shape or
a unit from the exis ng shape or unit. Look at the sequence given below.

10 blocks 8 blocks 6 blocks 4 blocks 2 blocks
–2 blocks –2 blocks –2 blocks –2 blocks

Observe that the pa ern is reducing and the rule here is to start from 10 blocks of a unit
and subtract 2 blocks each me from the previous unit.

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