NCTM – San Francisco

download (8)Screen Shot 2016-04-18 at 10.02.06 am

What an experience – This is huge.  There are over 8000 people at this conference in 4 large conference spaces.

Registration and orientation to the conference was on Wednesday 13 April afternoon. Time in the evening to read through the program to choose workshops for the next three days while watching the record making basketball game on the TV.  Zac and I watched it together over Facetime, Zac in Sydney and me in San Fransisco.  The local team Golden State Warriors  defeated The Bulls to become the first team to have 72 wins in one season.  Stephen Curry is the hero of the team also scoring his 400th season point during the game.

Session 1 -Thursday 14 April

Developing Fact Fluency – James Burnett- Origo (Brisbane Australia)

points from this session

  • building foundations -How can they answer 84×41 or 80×40 if you don’t know 8×4?
  • $19×3 – traditional teaching of tables does not emphasise thinking. 9×3 isn’t the most efficient
  • Hierarchy of thinking – Create, Critical, Procedural, Recall
  • Number facts should be learnt in clusters
    • efficient
    • flexible
    • generalisable
  • bucket count version- stypo cups with numbers on them, put 5 counters in cup 5 and then say “I’m putting in 2 more” then use pictorial  representation Screen Shot 2016-04-18 at 10.42.20 am
  • think big, count small
  • IMG_9890
  • fluency means daily short sessions  (SFF’s ) -5 minutes is often too long, use a range of settings , oral and written
  • gradually increase ‘speed’ of recall
  • Extend count on facts –
    • 6 + 2
    • 36 + 2
    • 36 + 20
    • 36 + 23            Use 100/120 charts
  • Addition chart –

IMG_9900

  • more than 50 by count on strategies
  • double strategies
  • https://youtu.be/sD87B9zeG2A
  • doubles in the real world – use shopping catelogues (double 3 -insects, double 2 – animals, cars, double 7 – calendars
  • double plus 1
  •  Screen Shot 2016-04-18 at 10.53.50 am  this right hand square is on the back to flip over middle square
  • 4 + 6 same as double 5
  • 15 + 17 same as double 16
    • 5 + 6
    • 25 + 26
    • 44 + 46
  • double 44  + 2  or 45 + 45
  • Make 10
    • 9 + 5  = 10 + 4
    • 29 + 15  =  30 + 14
    • 398 + 56 = 400 + 54
    • 1.96m + 2.45m =
  • Subtraction strategies – think addition – teach addition and understand the relationship rather than in isolation
  • 12 – 7 =   connection
  • take from  12 – 7  and unknown addend 7 + ? = 12 and difference between 12 red and 7 green
  • use part part whole mats and/or sliders    2 + ? = 8  addition / subtraction
  • practice using Take and Tally game – first to complete wins / first to 6 tally looses

strengthen the connections have to add the dice to see which algorithm to use

  • Origo videos being added – subscribe to receive updates
  • Screen Shot 2016-04-18 at 11.21.02 am https://www.youtube.com/c/OrigoOneVideos
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