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    E:\Working\Brother_Education\Preparatory_Stage_Maths-3_(11-09-2024)\Open_Files\CHAP_10
                 \ 06-Jan-2024               Sonia Suyal   Proof-1                            Reader’s Sign _______________________ Date __________

                  The minute hand (longer hand) moves from one small division to the next small  division
                  in 1 minute. It goes once around the dial in 1 hour. So, the minute hand covers 60 small

                  divisions in 1 hour.
                  So,                           1 hour = 60 minutes

                  The hour hand moves from one number to the next number in 1 hour.

                  So, it takes 12  hours to complete one round. The hour hand takes 2 complete rounds in
                  a day. So,                    1 day = 24 hours

                       activity
                    Prepare your own  paper plate circular  clock with  the  help  of your
                    parents or teachers and decorate it with coloured pencil or crayons.

                  Reading the time on the clocks

                  Reading time in hours                                  Reading time in half hours

                                                              12  1
                  When the minute hand is on 12,         10  11    2     When the minute hand is on 6,         11  12  1
                  the time is complete hours.            9         3     the time is in half hours.          10        2

                  Here, in the given clock, the hour     8  7  6  5  4   Look at the clock shown            9 8        4 3
                  hand is on 9 and the minute hand                       alongside.                            7  6  5
                  is on 12.                                              The hour hand is between 2 and 3. The

                  So, the time is 9:00 or 9 o’clock.                     minute hand is on 6.
                                                                         So, the time is 2:30 or half past 2.

                  Quarter Past the hour                                  Quarter to the hour

                  When the minute hand is on              11  12  1      When the minute hand                10 11  12  1  2

                  3, then the time is a quarter         9 10      2 3    is on 9, then the time is a         9          3
                  past the hour.                         8        4      quarter to the hour.                 8  7   5  4
                                                           7  6  5                                                6
                  In this clock, the hour hand is                        In this clock, the hour hand
                  beyond 1. The minute hand is                           is little before 5. The minute

                  on 3.                                                  hand is on 9.
                  So, we say that the time is 1:15 or quarter            So, we say that time is 4:45 or quarter to 5.

                  past 1.

                   teacher’s                                                                                       12 1
                      tip      Discuss with the help of examples that the positions of the minute hand at 3, 6, 9 and 12   10 11  2
                               are read as quarter past, half past, quarter to and o'clock, respectively.
                                                                                                                9       3
                                                                                                                8      4
                                                                                                                  7  6  5

                  Mathematics-3                                                                                         169

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