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For younger learners

  • Early Years Foundation Stage

Number Tracks

Age 7 to 11
Challenge Level Yellow star
  • Problem
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  • Student Solutions
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Ben's class were making number tracks and cutting them up.

number track of 0 to 12 ... ... ...

First they cut them into twos. Ben started with zero

Pairs of numbers: 0,1 2,3 4,5 etc ... ... ...

but Miles started with one:

numbers in pairs: 1,2 3,4 5,6 etc ... ... ...

Then they both added up the numbers on each piece.

Ben wrote: $0 + 1 = 1$, $2 + 3 = 5$, $4 + 5 = $... ... ...

Miles wrote: $1 + 2 = 3$, $3 + 4 = 7$, $5 + 6 =$ ... ... ...

What patterns could they see?

Alice cut her number track into $3$s and added up the numbers on each one.

numbers in threes: 0,1,2 3,4,5 etc ... ... ...

Winston made a longer number track which he cut into $5$s and he added up the numbers on each one.

numbers in fives: 0,1,2,3,4 5,6,7,8,9 etc ... ... ...

What could they discover about the sum of the numbers on their strips of number track?

What other patterns can you find?


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Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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