Rich Learning Tasks

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Placemats
Rubric
Level 1 Level 2 Level 3 Level 4
The student has
difficulty deciding that
the grey placemat has
more area.
The student either does
not bother making
a new placemat or
does not make a
new placemat of an
appropriate size.
The student recognises
that the grey placemat
has more area, but
is not convincing in his/
her evidence that it
is bigger.
The student makes
a new placemat
that might be of the
appropriate size, but
does not explain why
he/she is correct.
The student recognises
that the grey placemat
has more area and
attempts to prove
it by either unitising
or cutting up and
rearranging, but the
student does not
address imprecisions
(e.g. leaving gaps
between units or
not quite covering
some piece).
The student makes
a placemat of the
appropriate size, but
does not convincingly
explain why he/she
is correct.
The student recognises
that the grey placemat
has more area and
proves it using either
unitising with shapes
that touch (squares or
rectangles) or by cutting
up and rearranging
pieces from one
placemat on top of
the other.
The student makes
a placemat of the
appropriate size and
convincingly explains
why he/she is correct.
Measurement