Rich Learning Tasks

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Rubric
Level 1 Level 2 Level 3 Level 4
The student cannot
determine a set of
possible data values
to meet the required
criteria.
The student cannot
predict, in advance,
why there must be one
unusually large number
and/or why one data
value has to be the
mean.
The student determines
a set of possible data
values to meet the
required criteria.
The student struggles
to explain how he/she
created the data set.
The student cannot
predict, in advance,
why there must be one
unusually large number
and/or why one data
value has to be the
mean.
The student struggles
to create other solutions.
The student determines
at least 2 sets of
possible data values
to meet the required
criteria.
The student explains
how he/she created the
data set.
The student indicates
that there must be one
unusually large number
and/or why one data
value has to be the
mean.
The student can, if
requested, determine
more solutions, but
does not have an
efficient strategy to
do so.
The student determines
at least 3 or 4 sets of
possible data values
to meet the required
criteria.
The student clearly
explains how he/she
created the data set.
The student recognises
without referring to
specific values why
there must be one
‘outlier’ large number,
why one data value has
to be the mean and
why the total increase
matches the single
decrease.
The student explains
a strategy for creating
many more solutions,
e.g. adding the same
amount to all numbers
or multiplying all
numbers by the same
amount.
Building a Mean Patterns and Algebra