PISA 2012 Released
Items
Table
Chairs
1.5 metres
Full Credit
Code 2: 31.5.
[With or without units.]
Partial Credit
Code 1: Working that clearly shows some correct use of the grid to calculate the
area but with incorrect use of the scale or an arithmetical error.
•
126. [
Response which indicates correct calculation of the area but did not use
the scale to get the real value.
]
•
7.5 x 5 (=37.5) – 3 x 2.5 (=7.5) – ½ x 2 x 1.5 (=1.5) = 28.5 m
2
. [
Subtracted
instead of adding the triangular area when breaking total area down into sub
areas.
]
