A tic-tac-toe game that helps differ between even/odd and the different units of measurement.
A tape or ruler may be needed to measure out the units.
Students are divided into two groups-even and odd. Odd players are "Os" and Even players are "Xs." To place their mark on the tic tac toe board, players have to find something with an odd or even number of units. They find the object, have the measurement checked, and then record on the board. Continue until someone wins or all spaces are filled.