EXEMPLAR FOR LOW EXCELLENCE
NOTE: These exemplars do not fully show Grade Score Marking (GSM) because
of the small sample of student scripts involved, and the absence of a cut score
meeting to determine grade boundaries. GSM can be seen in the level 1 and level 2
exemplars from the 2012 examinations, which will be published on the NZQA website
when the assessment schedules are published.
Explains parasitic relationship, but not clearly how this results in better
survival, nor other resources that are parasitised.
Effect on crop production is marginally explained. Should include
effect of less energy on reproduction growth.
Viable reason (redevelopment of
sites) not clearly linked to reduction in
migration numbers, so Achieved.
Comprehensive coverage of
advantages, plus consequences.
Links migration to map.
Does not clearly explain the role of the moon as resetting
or triggering the biological clock.
Explains both advantages and costs,
but does not justify the strategy.
EXEMPLAR FOR HIGH EXCELLENCE
NOTE: These exemplars do not fully show Grade Score Marking (GSM) because
of the small sample of student scripts involved, and the absence of a cut score
meeting to determine grade boundaries. GSM can be seen in the level 1 and level 2
exemplars from the 2012 examinations, which will be published on the NZQA website
when the assessment schedules are published.
Explains survival in low N soils but vague on other ‘resources’ and how that affects
survival.
Explains long-term effects in terms
of the build up of striga seeds
and subsequent crop production
decrease.
Explains how dormancy
affects survival with clear
links to striga’s parasitism.
Comprehensive explanation of biology of control,
Marginal coverage of navigation –
links to map with magnetic poles
(one end of earth to another).
Clear linking of advantages
and consequences of
migration.
Coverage not comprehensive – only one reason justified.
Survival advantages and costs covered, and
overall effectiveness of strategy is justified.