The Metric Micrometer Game - Learn to Read a Metric Micrometer

Instructions:

• Use this game to learn and improve how you read a metric micrometer screw gauge.
• This game can be played using a mouse or a touch-screen.
• Press the Play Game button to begin playing the game.
• A measurement to select will appear above the micrometer.
• Questions are randomly displayed either in millimeters (mm) or in centimeters (cm).
• With your mouse or finger, click/tap and hold the thimble (handle) and move it left or right until you have reached the correct spot on the sleeve (main scale).
• Then use the minus and plus icons below the micrometer to precisely control the "sleeve main", "thimble scale" and "vernier scale" on the micrometer.
• When you believe you have the right answer, click/tap the "Submit Answer" button below the micrometer.
• For each correct answer, you will be awarded points. Your score is displayed on the left side of the Results Bar, which appears below the metric micrometer.
• Points are awarded based on the following table.

  Level	Time Limit	Points
  1	40 seconds	10
  2	37 seconds	20
  3	34 seconds	30
  4	31 seconds	40
  5	28 seconds	50
  6	25 seconds	60
  7	22 seconds	70
  8	19 seconds	80
  9	16 seconds	90
  10	14 seconds	100

• Each time you correctly guess 5 measurements, you will advance to the next level. Your current level is indicated in the Results Bar below the micrometer.
• The timer is represented to the right of the score in the Results Bar. As time passes, the bar will get shorter. It will begin as green, then turn yellow when you have only 10 seconds remaining, and turn red when you have only 5 seconds remaining.
• If you have not submitted a measurement when the time runs out, you will receive a strike.
• For each incorrect answer, you will receive a strike. After three strikes, your game is over. The number of strikes you have received is indicated on the right side of the Results Bar below the micrometer.
• Click the Settings button to adjust your preferences for the game.
  • Timer: The default setting is On. Select Off to have unlimited time to submit your answer.
  • Sounds: The default setting is On. Select Off to disable all game sounds.
  • Mode: By default, you're in "game mode." If you want to make the game easier, you can select "Training" mode. In the training mode, you can see the current value of the main sleeve, thimble scale, and vernier scale. In the training mode you can just play around with the micrometer and see how moving the thimble affects the values. You can also adjust the difficulty by putting some tape over some values.
  • All the settings will revert back to default and your score will reset if you refresh your browser.