NOVA

NOVA Science Now: McLurkin

Student Handout

Instructions for Groups

First and Second Number Groups

  • Hold up one of your hands so that the total number of hands held up by your group is equal to the number provided by your teacher.

  • You may raise a second hand if needed.

  • If the number displayed by your group is correct, do not raise or lower your hand.

  • If the number displayed by your group is too large, wait a moment, then lower one hand.

  • If the number displayed by your group is too small, wait a moment, then raise one hand.

Operation Group

  • You must display the operation given to you by your teacher.

Result Group

  • Find the first number by counting the number of hands held up by the First Number Group. Wait until the number of raised hands stops changing.

  • Find the operation by observing the Operation Group.

  • Find the second number by counting the number of hands held up by the Second Number Group. Wait until the number of raised hands stops changing.

  • Perform the arithmetic operation in your head. Remember the syntax of operations is first number-operation-second number, just like a calculator.

  • Raise one, both, or none of your hands so that the total number of Result Group arms raised is equal to the result.

Operation and Result Groups

  • Addition is indicated by placing both hands on your head.

  • Subtraction is indicated by placing both hands on your hips.

  • Multiplication is indicated by crossing both arms across your chest.

  • Division is indicated by placing both hands on your knees.




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