The Vernier Caliper Game - Learn and Practice Reading a Vernier Caliper

Instructions:

• Use this game to learn and practice how to use a Vernier caliper.
• The Game can be played either with an imperial scale or a metric scale. Numbers on the top of the scale are for the inch game and at the bottom for the centimeter game.
  Inch game precision: 0.001 inches.
  Metric game precision: 0.02 millimeters.
• This game can be played using a mouse or a touchscreen.
• Press the Play Game button to begin playing the game.
• A measurement to select will appear above the Vernier caliper.
• With your mouse or finger, click/tap and hold the slider and move it left or right until you have reached the correct spot.
• If you are not able to hit exactly the right spot, you can use the minus and plus icons below the Vernier caliper to control the Vernier caliper and move it up or down by 0.001 inches or 0,002 centimeters with each click.
• There's a small yellow arrow pointing to the lines matching perfectly.
• When you think you have the right answer, click/tap the "Submit Answer" button below the Vernier caliper.
• For each correct answer, you will be awarded points. Your score is displayed on the left side of the Results Bar that appears below the Vernier caliper.
• Points are awarded based on the following table.

  Level	Time Limit	Points
  1	40 seconds	10
  2	36 seconds	20
  3	32 seconds	30
  4	28 seconds	40
  5	24 seconds	50
  6	20 seconds	60
  7	16 seconds	70
  8	12 seconds	80
  9	8 seconds	90
  10	4 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 Vernier caliper.
• The timer is represented to the right of the score in the Results Bar. As time passes, the bar will get shorter.
• 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 Vernier caliper.
• 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.
  • Scale: Choose between inch and metric game. Default is inches.
  • 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 vernier caliper below the caliper.
  • Settings are saved in your browser for the duration of your session.