Matchstick Patterns

https://docs.google.com/document/d/1BMUrSg93OqyyE7gssO8mB4fo9i4bqY5bkT8UNimxUOk/edit?usp=sharing Brainstorm fractions and chance topic language. Refresh how a chance of something occurring can be represented using a fraction.{...}

  http://nrich.maths.org/2004 Trebling Age 7 to 11 Challenge Level Can you replace the letters with numbers? Is there only one{...}

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