Operation Neptune in a school setting-- Page 8

by  Alan Zisman (c) 2004

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Expert Level:

The Expert Level uses the same problem types as the Voyager Level, but using decimals and percentages. As well, several new problem types appear. (I haven't had as many students playing this level, so there are probably more problem types still be discovered!)

Data Cannister: This example is similar to the one from the Voyager Level except it is using decimal numbers. In this case, the pattern is that each number is multiplied by 3 to get the following number.

As well as using decimal numbers, this time the numbers are decreasing, so students need to recognize that they will need to subtract or divide by a constant amount-- in this example, subtracting 0.10 each time.

Navigation Chart: Again, similar to the Voyager Level problem, but requiring estimating decimal fractions. In this example, 178.5 - 176.5 = 2

Heading Indicator: Count (starting from zero degrees) how many lines it is to the degrees indicated-- in this example, 135 º is three lines. Starting from where the sub is pointing now (45º), move your finger that far to the left or the right. In this example, you move to the left, to 270º.

Heat Sensor: Two steps... first, find the difference between the Current Temperature and the Eruption Temperature by subtracting. Then divide by the Rate of Temperature Increase to get the number of seconds before the eruption.

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