In my classrooms I do a lot of work on the need for efficiency
in doing mental computations. We aim for, 'SEE
IT, SAY IT'. This game offers heaps of opportunity
to discuss 'efficient' number strategies. It also demonstrates
that those who use efficient strategies will do better at the
game.
Remember
to play safe!
Calculators
make for extra fun when playing this game as most people can
'Beat the Calculator'!
What
to do:
1.
Draw this grid on concrete using chalk. Each square should be about
30cm by 30cm.
2. Two players stand with their feet in the large feet facing the
game board.
3. A 'Caller' asks a question from one of the cards.
4. When a player has worked out the answer they must jump from their
spot onto the correct answer. Do not move until you know the answer.
5. Players then rotate positions but the winner stays to compete with
next player.
NB The object
of the game is to have a bit of fun while you learn some of the facts
so make an effort to learn your Subtraction 'Doubles' facts while
you're standing in line.
Subtraction
Game
Word Version
Subtraction
Game
Acrobat Version