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Activity Instructions:** The computer game is self-correcting and so can be used for individuals,
small groups or in a teacher-led discussion. Without the software,
feedback needs to be given by the teacher and other class members
and a trustworthy person needs to uncover the digits as requested.
**1. **The teacher writes a pair of numbers behind the cards,
with the decimal points visible and one above the other. Make
the whole number parts equal in most cases.
**2**. Students "pay" (e.g. with points) to reveal
the digits they select. A team can only have one digit revealed
in each turn.
**3**. At any stage, the team can guess that the two numbers
are equal or nominate which one is the larger.
**4.** A correct guess wins points. An incorrect guess loses points.
**5.** Continue until interest wanes. Select pairs of numbers which
draw out likely misconceptions (e.g. that only the length of the
decimals matter, that 0.32 = 0.3200 etc). |