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    If we  want to  measure the  length  of  objects  like  a  pencil
                using a scale, we place the object alongside the ruler with
                one end of the object at the zero mark of the ruler as shown.

                We take the reading at the other end of the object. This gives us the length of the
                object. The length of the above pencil is 4 cm or 40 mm.

                                                                                                 21 st
                          Activity                                                              Century   Computational Thinking
                                                                                                 Skills

                   Take a ribbon/lace/thread that measures exactly 8 metres in length.
                   Make a knot to divide the piece into two parts so that one measures
                   5 metres and the other measures 3 metres, without using a measuring
                   tape.

                            Exercise 9A

                    1.  how will you measure the length/height of the following things (m/cm/km)?

                        a.                                                b.

                             __________                                        __________

                        c.                                                d.

                             __________                                        __________

                        e.                                                f.

                             __________                                        __________

                        g.                                                h.

                             __________                                        __________

                        i.                                                j.

                             __________                                        __________

                       154       Mathematics 3

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