Page 38 - MATEMATIK (JILID 2) TAHUN 3
P. 38

3   140 minutes =           hours          minutes        60 minutes
                                                                                 = 1 hour
                         140 minutes = 120 minutes + 20 minutes

                                            = 2 hours + 20 minutes             Convert
                                                                           120 minutes to
                                            = 2 hours 20 minutes
                                                                            2 hours first.
                         140 minutes =   2  hours 20 minutes


                             LET’S TRY


                     Complete these.
                     a 2 complete circles of a second hand is        minutes.

                     b 6 minutes =        seconds                 c 480 seconds =        minutes

                     d 310 seconds =         minutes         seconds         e 5 hours =         minutes


                     f 120 minutes =         hours        g 290 minutes =        hours        minutes


                           FUN PROJECT



                      Tools/Materials        2 sets of question  Participants           work in pairs
                                             cards, chips                       EXAMPLES OF QUESTION CARDS

                                             (2 colours),
                                             pen or pencil
                      Method



                       Put a chip on the START box.
                     1
                     2
                       Play rock-paper-scissors.
                     3
                       The winner moves his/her chip one box
                       upwards and answers the question. If the answer is wrong,
                       move the chip one box downwards. The second player then
                       moves his/her chip upwards and answers the question.

                     4
                       Repeat steps 2 and 3.
                     5                                                                             Saiz sebenar
                       The player who reaches the FINISH box first wins.

                  AB  TEACHER’S  • Prepare two sets of question cards involving the relationship between   5.2.1
                   95   NOTES     minutes and seconds, and hours and minutes. Make sure both sets of   5.2.2  33
                                  questions are almost identical and the level of difficulty is the same.
                                • Guide pupils to answer the questions in the Fun Project.
   33   34   35   36   37   38   39   40   41   42   43