From Our Leader of Pedagogy - Mrs Abbie Matthews
Stage Three Mathematics Enrichment
Over the past two terms, students from Years 5 and 6 have been engaged in fortnightly groups where we have engaged in challenging tasks and exploring maths through problem-solving. The problem-solving tasks were based on questions from Maths Olympiad. Although students found these tasks challenging at times, they persisted and worked together, finding solutions to the problems.
I would like to congratulate the following students who participated in these groups at various times over the two terms.
Year 5: Jimmi Matthews, Adrian Brickhill, Finn Martin, Keiran Nolan, Jordan Heath, William Curnock, Martin Barca, Darcy De Witt, Eamon Bailey, Isaac Wicks
Year 6: Eli Addenbroke, Achie Da Fre, Max Allman, Jimmy Field, Aiden Boyd, Zav Cohen, Zachary King, Poppy Andre, Grace Edmonds, Amelia O'Connor, Bella Sauer
Due to the success of these sessions, we are hoping to nominate a Year 5 and 6 team in the Mathematics Competition in 2023. More information to come in 2023
Try this...
Ku-ring-gai Postcodes
Ku-ring-gai is a local government area in Northern Sydney.
From this image, could you determine the number of different postcodes in Ku-ring-gai?
Are postcodes cardinal, ordinal or nominal numbers?
Ku-ring-gai Postcodes - Answer
Cardinal numbers are the numbers that are used for counting.
Ordinal numbers are numbers that are used for counting.
Cardinal numbers are the numbers that are used for counting.
Postcodes are used to identify different areas, so they are nominal numbers.
For example, the postcode 2073 does not mean that there are 2 thousand and 73 of anything (cardinal) or that the area is 2 thousand and 37th in some order (ordinal).
2073 is just a label used to identify an area
Because the numbers are nominal, we cannot assume that the consecutive postcodes from 2069 to 2076 are in Ku-ring-gai and no other postcode is within this local government area.
The postcodes are consecutive and are in the range of 2069 to 2076.
Therefore, the number of postcodes in Ku-ring-gai is:
2076 – 2069 + 1 = 8. (One is added because we are finding the difference between 2 numbers where the first number is included in the count.)
The 8 postcodes are: 2069, 2070, 2071, 2072, 2073, 2074, 2075 & 2076