1. Click 2. Decide who will be the Number Master and who will be the Number Mover ( or your names). 3. One partner is the Number Master and thinks of a number (keep it a secret!) 4. The other partner is the Number Mover. Guess a number. 5. The Number Master will say whether it is less than or greater than the number guessed. 6. The Number Mover moves an arrow so that the mystery number is between the two numbers. 7. Continue till the mystery number is shown. 8: or the mystery number in the box.