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'Our Numbers' printed from http://nrich.maths.org/
For this activity I've chosen first of all to use a $1$ to $6$ and
a $0$ to $9$ spinner.
The $1$ to $6$ we will use to give us the "tens" figure and the
other one for the "units" (or "ones").
You will need two
spinners like those above and two cards which each have six boxes
drawn on them. You can download and print these
, or you could use
. You will also need twelve counters.
A person with one card
chooses the special types of numbers that they will collect. The
other person chooses some other special types of numbers to
For example, Sara chooses numbers you can
share equally among $3$ ( eg. $3, 9, 21, 39 ... $).
Nala chooses even numbers (eg. $4, 10,
20, 44 ... $).
Each of them spins a spinner and then
when it rests they read out the number (tens and units).
Suppose it's a $21$ then Sara places a
counter in one of the boxes on her card. If it is a $10$ then Nala
gets a counter for her card. If it's a $30$ then both of them get a
So you can do something similar.
When you've tried it a few times decide
what's best to choose so that you fill all the boxes on both cards
as quickly as you can.
Think about other spinners - there are
of course you can design your own.
Are there good choices of spinners that
work really well?