Post 4 28/5/15
A fun Way To Learn your Times Tables.
Watch the following video and then have a go yourself. Have a try with all the other timestables to see what patterns they make on a circle with the digits 0-9. Talk to your family about why the same digits repeat for each timestable. Looking for patterns and rules helps build your understanding of numbers.
Have FUN!
Post 3 29/3/15
Basic Facts
More basic facts that children need to be able to quickly recall...
Doubles
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Doubles plus 1
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1+1
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2-1
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1+2
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3-1 or 3-2
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2+2
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4-2
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2+3
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5-2 or 5-3
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3+3
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6-3
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3+4
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7-3 or 7-4
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4+4
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8-4
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4+5
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9-4 or 9-5
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5+5
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10-5
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5+6
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11-5 or 11-6
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6+6
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12-6
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6+7
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13-6 or 13-7
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7+7
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14-7
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7+8
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15-7 or 15-8
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8+8
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16-8
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8+9
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17-8 or 17-9
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9+9
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18-9
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9+10
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19-9 or 19-10
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10+10
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20-10
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10+11
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21-10 or 21-11
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Getting children moving while practicing their basic facts really helps
with memorising…
You or your child could draw a grid in chalk on the pavement with
numbers 1-10. Throw a pebble and call out the double or double plus one for
that number or better still jump to that number as they go.
If you have an old bit of fabric, you or your child could make an indoor
version to use through winter.
Fantastic Whetu Maths
Post 2 23/3/15
Odd One Out
Developing children's ability to explain their reasoning clearly and justify their choices is a huge part of what we do in maths in Year 3 and 4. It's equally as important for children to realise that maths isn't always about a 'right' or a 'wrong' answer, in fact there is often multiple possible solutions depending on the chosen path for investigation.
Here is an example of this in action....
Room 16 investigated the possible solutions for this 'Odd One Out' problem involving four numbers, 40, 52, 105, 356. As you can see in the photo there were 3 possible solutions identified (there may be more!). Children were able to justify and prove their reasoning. There was also robust discussion around odd numbers. Children disagreed on the rules for odd numbers so we had to investigate further! Exciting stuff!
This is a fun, easy activity to do at home too and can be used for basic facts practice. For example, 45, 24, 30, 20. Children could identify the 3 numbers that are multiples of 5, then explore other numbers that would fit. Equally they could identify the 3 numbers that are multiples of 2 etc.
Children could then go on to write their own Odd One Out problem, choosing 4 or more numbers where there could be more than one solution, then share with their class.
There really is no end to the possibilities for 'Odd One Out' problems... we look forward to seeing what out Whetu whanau come up with!
Post 1 - 15/02/15
At Year 3 and 4 children need to be able to recall addition and subtraction basic facts quickly and confidently. This helps them to solve problems by focusing on strategy instead of getting caught up with simple calculations.
Children can learn their basic facts through rote practice which may include saying them out loud, singing them, writing them down in a variety of ways eg, using pavement chalk, using paint, in sand, using squeezy bottles of water/dye/paint etc, flash cards, quizzing and playing games.
Playing games has the added benefit of having a fun, competitive element which fires up the brain and helps to cement the facts into long-term memory.
A fun game that is easy to set up with just a pen and paper is ‘Strike It Out’. This game could be played with parents, siblings, friends and other family members.
So, the challenge for Whetu tamariki… learn all the addition and subtraction facts for numbers up to 10 or 20 so that you know them off by heart &lightning fast!
Here are some to start working on:
Addition – number bonds (pairs) to 10
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Subtraction – number bonds (pairs) to 10
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Addition – number bonds (pairs) to 20
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Subtraction – number bonds (pairs) to 20
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1+9
2+8
3+7
4+6
5+5
and in reverse
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10 – 1
10 – 2
10 – 3
10 – 4
10 – 5
10 – 6
10 – 7
10 – 8
10 – 9
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1 + 19
2 + 18
3 + 17
4 + 16
5 + 15
6 + 14
7 + 13
8 + 12
9 + 11
10 + 10
and in reverse
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20 – 1
20 – 2
20 – 3
20 – 4
20 – 5
20 – 6
20 – 7
20 – 8
20 – 9
20 – 10
20 – 11
20 – 12
20 – 13
20 – 14
20 – 15
20 – 16
20 – 17
20 – 18
20 – 19
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so much learning what if you did some times take aways plus woud you get the same or diffrent anser or both
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