Hi
March 14

Understanding number

LER6649

For most of this term we have been familiarising ourselves with numbers.

Talking about your learning helps clarify your thinking

Talking about your learning helps clarify your thinking

That means understanding

  • odds and evens
  • place value to thousands and ten thousand
  • how number expanders work
  • expanded notation
  • rounding to ten

Reading large numbers can be tricky and we know the more we have a go the more we begin to understand. We are certainly working on building stronger mental pathways.

Have a go at working out these numbers? (answers later)

2000+600+70+3

7000+500+9

5000+90

23 hundreds +8tens+ 2 ones

2thousands+46tens+7ones

6thousands+742ones

Then of course we need to know how to read and write three different versions of a number.

Standard Digital Form  4 852

Expanded Form 4000+ 800+50+2

Word form  Four thousand eight hundred and fifty two

 

We played some games of Bounty Hunters where we had to calculate our collection of nasty pirates to see who could get close to a target number. Our knowledge of adding and counting in hundreds, tens and fives came in handy. But it was our clever mental calculations and strategic thinking that helped us get close to the winning number. Sometimes the cards were not in our favour!

Sometimes in maths we have to think and calculate quickly.

Knowing our number facts is a really useful skill in maths. Games like Pig help us to build quick thinking and calculating. Have you explained how to play this game with your families yet? Why not challenge them to a game.

Adding scores is when we rely on our mental computation strategies.

Such as:-

  • chunking,
  • friendly numbers
  • doubles
  • rainbow number facts
  • make to ten
  • near doubles

All this practice helps us to make better sense of how our number system works and so that we can use this knowledge to get to really interesting activities such as problem solving. We are going to learn and share lots of strategies that will support us in solving a variety of mathematical word problems.

 Answers to the numbers are. How did you go?

2673, 7509, 5090, 2382, 2467, 6742

How do you feel about your understanding of place value?

What are you doing to help you mental facts along? (read an earlier post on number facts)

 

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Posted March 14, 2016 by elleneisenkolb15 in category Maths/Numeracy, Team work

3 thoughts on “Understanding number

    1. elleneisenkolb15 (Post author)

      G’day Fin
      Why are you so excited. I am guessing it’s because you are going to the UK for a visit, just remember to come back again. You know you can go on the Blog and leave us a message and tell us about your overseas adventures. I look forward to that. What are you looking forward to most back in the old country? Are you going to bring you family any thing from Australia?
      Love Ellen

      Reply
    2. Maggie

      Comment C’va Finlay,
      yes, yes, yes! I am so, so, so excited for term 2! Can you tell me why you are excited? I don’t know why I’m excited. I just am. I wonder what will happen? what do you think? Well, I think Ellen
      will give the whole class harder work [it is pretty easy already] and also give us harder tests. What do you predict? I hope I’m right.
      From Maggie

      Reply

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