Page 41 - steps 3b.pdf
P. 41

42                          •  Shape sorts .  •  •  •  •  •  •  •                •  Shape challenges .  •
         ~:I'I']*'fI'~                                                                    Work with a partner if you can.                     ~~~~l~~~
                                     l~b\;vll~VaOlloQQI                                   II]  Write the letters a to i on the nine dotty Wids on  your copy of RM 62  .
               PAGE 72
                                                                                          o  Make on your geoboard, then  record on your dotty grids,
                                                                                             the shapes a to i listed below.  Like this:
                                     I<C?PIIEOOI  -~-                                                         ""ecce

                                                                                                              C  0  ~
                                                                                             a triangle with   c  c   c  v  c  c   ~
                                                                                                              (j  C
                                                                                             a right-angled corner
                                                                                                                     "
                                     OJ   Copy and complete this table                                        OOOVOv
                                        for sets A to E above.       belongs to the family of                 c  0   CI   "   C  0
                                     lr;-I'>'~ }~'?~               A      hexagons
                                    ,    )~';,                     B.............  ~ triangles   a  a pentagon
                                                                          quadrilaterals
                                    ~).J'"
                                                                   C
                                    (, ",
                                    ~~~'                           D      octagons           b  a triangle with 3 sharp corners               rn  [gJ
                                                                                             c  an oblong with an area of
                                                                          pentagons
                                                                   E
                                                                                               five square centimetres
                                     [gJ   Write the family each of these shapes             d  a quadrilateral with only two                 Some possible
                                                                                               right-angled corners
                                        belongs to.                                          e  a large square with a smaller square          solutions:
                                                  ~0                                           inside it but not touching it                        a
                                                                                               two overlapping triangles
                                          GJ                                                  9  two matching squares                                      ~ :
                                                                                               touching at one corner
                                                             ~ J ~                             a square inside a hexagon                                   U.
                                                                                              h  a hexagon with a line of symmetry
                                                                                               with its four vertices (corners)
                                                                                                                                                               ·· .
                                                                                               on the perimeter of the hexagon
                                                                                           CHALLENGE
                                                       00~                                                                                          b      · . .
                                                                                           Get another copy of RM 62  and invent your own shape challenges.
                                     m                                                    ! STEPS 3b:29!                               Ell                 · . .  .
                                                                                                                                                           · . . .
                                                                                                                                                           ·
                                                                                                                                                          V ..
         rn                                    [gJ
               belongs to the family of        triangles:  b, j                             C                 drBl e[§l f
                                     •
                                                                                                                                                        .. . . .
                                                                                                                                                 ·
                                                                                                                                     .  D
                                                                                                                       ...
                                               quadrilaterals: a, C,  h, i                                          [j .. C§] .. ~
         A                    hexagons                                                         I  - - - - I            ....                     .... .
                                               pentagons: e, f
         B                    quadrilaterals                                                                                 ..                 ... . .
                                               hexagons: d, g, I                                                                                           · ..  .
         C                    triangles                                                                                              I            I     I
                                               octagons: k,  m
         D                    octagons                                                      Challenge                                :  : 0 · Q
         E                    pentagons                                                     Invent own         9 IdP: h              ....               .         .
                                                                                                                  ..  ..
                                                                                            shape                             .      ....                    .
                                                                                            challenges.              .  ...          . ..  ..           .         .
                                                                                                                         . . .       . . . . . .        . .
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