Page 28 - steps 3b.pdf
P. 28

2q
                                   •   Going round in circles         •    compasses,   •  Symmetrical patterns ., 1cm  squared paper
                                                                           large sheet
                                                                           of paper
       ~:l.I.l~I.~                                                                                                          (RM144),  mirror   ~:N.l:*l'~
             PAGE 46               OJ   Make a pattern with arcs and circles.   pQ)     OJ   Place your mirror on the dotted line.   •             PAGE 47
                                                                                            Is  this pattern symmetrical?

                                                                           some arcs I
                                                                                                                m In  this pattern there are
                                                                                                                   two lines of symmetry.
                                                                                                                   Check with your mirror.

                                                                                        W  Copy each pattern onto squared paper. Colour the empty half
                                                                                            to make the patterns symmetrical. You  can use a mirror to help.
                                                                                            a                        b
                                   I]J   Try  drawing semi-circles of different sizes.

                                               / "'J ( c:sse:~Ci'cle
                                               ~ HELP Box


                                             o                -  diameter -





                                   Q]   Draw then  colour
                                       your own semi-circle pattern.
                                   m                                         I STEPS  3b:191   ISTEPS 3b:20!                         m



                                rn-~                                                      rn  00                                ~

                                 Practical: making patterns with                          Practical: using a mirror to check    Practical: copying and completing
                                 arcs, circles and semi-circles.                          symmetry.                             symmetrical patterns onto squared
                                                                                                                                paper.
   23   24   25   26   27   28   29   30   31   32   33