Page 206 - ICSE Math 5
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2.  Complete the following patterns.



                            (a)

                                                                         ___________, ___________, ___________




                           (b)
                                                                         ___________, ___________, ___________





                            (c)
                                                                         ___________, ___________, ___________



                    Progressive Patterns
                                                                                                   Top Tip
                    A pattern that grows is called a progressive pattern. It is also
                    known as a growing or increasing pattern. It is a pattern                While comparing the
                                                                                              increasing patterns,
                    where the size of the elements increases every sequence in
                                                                                           observe the first element
                    a predictable manner. This type of pattern is usually seen in            and the change that
                    numbers and shapes. Progressive patterns follow a certain                 occurs each time.
                    rule or rules.

                    Let’s see some number patterns to understand this.
                    In 1, 3, 5, 7, …, the pattern rule is to start at 1 and add 2 to get the next number. The pattern
                    formed, consists of odd numbers.
                    In 2, 4, 6, 8, …, the pattern rule is to start at 2 and add 2 to get the next number. The pattern
                    formed, consists of even numbers or multiples of 2.

                    Now look at the shape patterns shown below.





                                               1          2              3               4






                                             1         2             3                 4

                    In these shape patterns, each figure (group of triangles and group of squares) is an element and
                    is growing by adding 1 more shape to the previous element. The rule followed is to start with one
                    shape and add 1 more shape.
                    The difference between repeating and progressive patterns is that repeating patterns have a unit
                    of repeat while progressive patterns do not have a unit of repeat.


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