australian2curriculum2year262 vocabulary 222222 2 ·...

2
Inves&gate the idea that the size of a frac.on is rela.ve, by dividing a circle into thirds with a protractor. A circle has 360 0 . ask learners to calculate a third. Ask learners to draw a circle on coloured paper and cut it out. Ideally there should be a variety of diameters. Ask them to find two other learners and create a concentric circle by combining their three circles. Learners should be able to collabora.vely nominate a frac.on which is then make on each circle. The frac.on of each should be able to be aligned. Vocabulary frac.onal value, the same as, ‘part of a whole’, rela.ve Ac&vity Process: Size of a frac&on Learning inten.on: The size of a frac.on is rela.ve Introduce the book ‘The Dot’ by Peter Reynolds hJps://www.youtube.com/watch?v=t5mGeR4AQdM Explain that many ar.sts use geometric shapes Such as circles in their art. Show the Kandinsky Effect hJps://www.youtube.com/watch?v=aMiiKLyIR88 Kandinsky favoured the use of concentric circles in his work. (Two or more circles have the same centre point Model ½ as 1 out of 2 (this is what the line means divide) By folding a circle Model ⅓ in different size circles. One third always represents one part out of three but one third of a greater whole represents a greater value (more of) Australian Curriculum Year 6 Compare frac.ons with related denominators and locate and represent them on a number line (ACMNA125) Key Ideas Frac.ons are a way of comparing a part to a whole. A frac.onal part exists only when a whole has been divided into equal parts The whole in a frac.on can represent a region, a set or a segment The name of a frac.on depends on the number of equal parts (denominator) Context for Learning Real life experiences: Frac.ons are important because people use them everyday in ac.vi.es like cooking, carpentry, sports, sewing and driving. For example, cooking involves using measurements of ingredients given in frac.ons, such as 1/2 cup flour, 1/2 teaspoon of sugar or 1/4 teaspoons of salt. Resources FISH Paper circles Link blocks, kitchen pegs, circle links Coloured paper Blank number lines Write About This App (free version)

Upload: others

Post on 09-Apr-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Australian2Curriculum2Year262 Vocabulary 222222 2 · Invesgate!the!ideathatthe!size!of!afrac.on!is!relave,!by!dividing!acircle!! into!thirds!with!aprotractor.!A!circle!has!360 0.!ask!learners!to!calculate!athird.!Ask

Inves&gate  the  idea  that  the  size  of  a  frac.on  is  rela.ve,  by  dividing  a  circle    into  thirds  with  a  protractor.  A  circle  has  3600.  ask  learners  to  calculate  a  third.  Ask  learners  to  draw  a  circle  on  coloured  paper  and  cut  it  out.  Ideally  there  should  be  a  variety  of  diameters.  Ask  them  to  find  two  other  learners  and  create  a  concentric  circle  by  combining  their  three  circles.  Learners  should  be  able  to  collabora.vely  nominate  a  frac.on  which  is  then  make  on  each  circle.  The  frac.on  of  each  should  be  able  to  be  aligned.  

Vocabulary  frac.onal  value,  the  same  as,  ‘part  of  a  whole’,  rela.ve                  Ac&vity  Process:  Size  of  a  frac&on  Learning  inten.on:  The  size  of  a  frac.on  is  rela.ve    Introduce  the  book  ‘The  Dot’  by  Peter  Reynolds  hJps://www.youtube.com/watch?v=t5mGeR4AQdM    Explain  that  many  ar.sts  use  geometric  shapes  Such  as  circles  in  their  art.  Show  the  Kandinsky  Effect  hJps://www.youtube.com/watch?v=aMiiKLyIR88    

Kandinsky  favoured  the  use  of    concentric  circles  in  his  work.    (Two  or  more  circles  have  the    

same  centre  point        Model  ½  as  1                                        out  of                                                2            (this  is  what  the  line  means  -­‐  divide)  By  folding  a  circle    Model  ⅓  in  different  size  circles.    One  third  always  represents  one  part  out  of  three    but  one  third  of  a  greater  whole  represents  a  greater  value  (more  of)  

Australian  Curriculum  Year  6  Compare  frac.ons  with  related  denominators  and  locate  and  represent  them  on  a  number  line  (ACMNA125)    Key  Ideas    Frac.ons  are  a  way  of  comparing  a  part  to  a  whole.    A  frac.onal  part  exists  only  when  a  whole  has  been  divided  into  equal  parts  The  whole  in  a  frac.on  can  represent  a  region,  a  set  or  a  segment  The  name  of  a  frac.on  depends  on  the  number  of  equal  parts  (denominator)    Context  for  Learning  -­‐  Real  life  experiences:  Frac.ons  are  important  because  people  use  them  everyday  in  ac.vi.es  like  cooking,  carpentry,  sports,  sewing  and  driving.  For  example,  cooking  involves  using  measurements  of  ingredients  given  in  frac.ons,  such  as  1/2  cup  flour,  1/2  teaspoon  of  sugar  or  1/4  teaspoons  of  salt.    Resources  •  FISH    •  Paper  circles  •  Link  blocks,  kitchen  pegs,  circle  links  •  Coloured  paper  •  Blank  number  lines  •  Write  About  This  App                (free  version)        

 

             

Page 2: Australian2Curriculum2Year262 Vocabulary 222222 2 · Invesgate!the!ideathatthe!size!of!afrac.on!is!relave,!by!dividing!acircle!! into!thirds!with!aprotractor.!A!circle!has!360 0.!ask!learners!to!calculate!athird.!Ask

           Ac$vity  Process:  Frac$on  wall  Frac.ons  can  also  be  represented  as  a  wall  display.  Using  paper  strips  start  with  a  top  strip  with  0,  ½,  2/3,  wriJen  at  the  beginning,  middle  and  end.      

       0                    1/2                    2/2            0                                                                                                                            1/3                                                                                                                                                          2/3                                                                                                                                            3/3            0                                                                                          1/4                                                                                                                2/4                                                                                                                    3/4                                                                                        4/4    Ask  learners  to  complete  the  number  strips  to  twelGhs  and  then  look  for  equivalent  sets  of  frac.ons  and  also  compare  frac.onal  sizes  eg  which  is  bigger  2/3  or  5/7?.  Ask  learners  to  create  a  true  or  false  ques.on  about  what  they  see  eg  1/2  and  2/4  are  the  same  but  1/3  is  bigger  than  1/4.  True  or  false    Inves&gate  the  following  problem  using  the  frac.on  strips.    A  frog  was  sikng  on  a  stone  in  the  middle  of    river.  On  one  bank  are  a  group  of  the  the  stripped  frogs  friends.  On  another  sits  a  group  spoJed  frog  friends.  Both  groups  are  invi.ng  the  frog  to  join  them  by  loudly  croaking.  The  frog  who  is  unable  to  decide  which  group  to  join.  Making  a  decision  the  frog  sets  off  and  swims  towards  the  spoJed  frog  group,  but  when  the  frog  is  exactly  halfway  between  the  middle  of  the  river  and  the  group  it  changes  it’s  mind  and  swims  back  towards  the  stripped  frogs.  Amer  swimming  exactly  half  the  distance  the  frog  originally  swam  towards  the  spoJed  frogs  ,  the  frog  has  another  change  of  mind,  at  which  point  the  frog  swims  half  the  previous  distance  back  towards  the  spoJed  frogs.  Assuming  the  frog  con.nues  in  this  state  of  indecision,  where  will  it  end  up?    The  strips  could  be  expanded  to  include  decimal  equivalents    

       0                                                                              1/5                                                                                  2/5                                                                                  3/5                                                                            4/5                                                                            5/5          0                                                                              0.2                                                                                    0.4                                                                                  0.6                                                                              0.8                                                                            1.0  

Ac&vity  Process:  A  frac&on  is  rela&ve  to  a  whole    Name  the  frac.on  represented  as  a    (A)  Region  

(B)  Set  

(C)  Segment  of  a  number  line      

Draw  diagrams  to  represent  7/12  as  a  region,  a  set  and  a  segment  of  a  number  line    Inves&gate.  The  Interna.onal  Space  Organiza.on  was  taking  applica.ons  to  join  a  team  of  scien.sts  preparing  to  build  an  experimental  space  sta.on  city  near  the  moon.  The  panel  reviewing  the  applicants  found  that1/2    came  from  the  United  States,  1/4  from  Canada,  1/8  from  Russia,  1/16  from  England,  1/32  from  India  and  18  applica.ons  from  Australia.      How  many  applica.ons  in  total  have  been  received  for  the  space  city  project  and  how  many  came  from  each  country?      Choose  one  model  to  represent  your  answer  as  reasonable.    

0                                                                                                                          1