John Duffty

@johnduffty

I'm passionate about good maths teaching. I share maths resources, games, ideas and teaching strategies here:

mathsticks.com
Joined February 2010
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  1. 5 minutes ago

    Go on, the end of the year is close enough now... delve into some Binary numbers - make sure the -

  2. 6 hours ago

    Play a real game this weekend - we have 100s of them!

    1 like
  3. 19 hours ago

    Dots and Grids - great for reasoning about shape!

  4. 19 hours ago

    Mike Askew: "Good things come in threes", great article about reasoning... make sure the -

  5. Retweeted
    21 hours ago

    I see an investigation coming on.

    TRICKY PROBLEMS: A shopkeeper charged £2.51 instead of £2.15. How much did he overcharge? (and why is the difference a multiple of 9?)
    1 retweet 1 like
  6. Jun 9

    TRICKY PROBLEMS: A shopkeeper charged £2.51 instead of £2.15. How much did he overcharge? (and why is the difference a multiple of 9?)

    1 like
  7. Jun 8

    TRICKY PROBLEMS: Alice has collected 45 coins. A fifth of them are 50p coins and the rest are 20p coins. How much money does she have?

    2 retweets 4 likes
  8. Jun 8

    Do you use a 'Number of the Day' type activity? Regularly? Do you want to make it better? Here's an idea:

    3 retweets
  9. Jun 8

    These look incredibly useful.

    Not long to go... Get your copy of this FREE 'Maths Facts Rulers' PDF by signing up at
  10. Jun 8

    If you are a fan of the characters you'll be pleased to see the return of this co-ordinates game -

  11. Jun 8

    If you've used these simple Logic Puzzles with your class please let me know... we'll make more if they are popular!

  12. Jun 8

    Some great ideas here: 5 of the best activities and resources for Primary School leavers...

  13. Jun 7

    TRICKY PROBLEMS: What is fifteen less than the sum of 7, 14, 28 and 56? (How would you approach this to make sure the ?)

    1 reply 1 retweet 4 likes
  14. Jun 7

    Tens Frames that are as solid as Houses... great for Early Years Number work.

  15. Jun 7

    We're working on a brand new batch of Coded Locks puzzles (), they'll be out in the next few days.

  16. Jun 7

    TRICKY PROBLEMS: What is half of £2.50 added to a quarter of £6.00? (how can you be sure your ?)

    1 like
  17. Jun 7

    And in other news...

    Discouraging children from counting on their fingers could stunt their mathematical development
  18. Jun 7

    Eh!? "...pupils have been told not to use their fingers when it comes to learning maths amid claims it is childish."

  19. Jun 7

    Effective teaching is important. Learning counts. Let's make a tag for all good maths ideas - wherever they come from.

  20. Jun 6

    Early Years Teachers: How else could you use this set of number cards with your children?

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