Draw a tic-tac-toe grid on a piece of
paper like the first one shown below.
Explain that the number in the box is a
sum. Ask children to find 3 number combinations that equal the
sum and to draw a line through those three numbers. Lines may go
across, up and down, or diagonally. They must be straight
lines. There is more than one combination for each sum.
Discuss strategies.
For more practice, change the numbers in
the grid as shown below in the other two diagrams, or make up your own
grids.
