2026 7 Maths Unit 3.2 Rubric

Actual Rubrics are based on teacher-elaborations of selected content descriptors for the assessment that sufficiently map to all of the Achievement Standard components.

Achievement Standard Rationaliser for Assessment Construction (Non-Assessment Specific)

Achievement Standard Component	E	D	C	B	A
They represent objects two-dimensionally in different ways, describing the usefulness of these representations.	Fragmented representation of 3D objects in two dimensions.	Draws basic 2D representations but cannot explain their usefulness.	They represent objects two-dimensionally in different ways, describing the usefulness of these representations.	Creates highly accurate 2D representations (e.g., nets, plans) and clearly explains their specific practical applications.	Drafts complex 2D technical drawings of multi-faceted objects, critically analysing the limitations and benefits of the formats.
They apply knowledge of angle relationships and the sum of angles in a triangle to solve problems, giving reasons.	Does not recognise angle relationships or the triangle sum rule.	Calculates missing angles with assistance but struggles to provide mathematical reasons.	Apply knowledge of angle relationships and the sum of angles in a triangle to solve problems, giving reasons.	Independently solves complex, multi-step angle problems and consistently provides clear, geometric reasoning.	Constructs rigorous geometric proofs using angle relationships and the triangle angle sum.

Content Descriptor Rubric for Content Rationalisation (Non-task specific)

E	D	C 😊	B	A
Draws purely artistic interpretations lacking mathematical scale.	Sketches 2D nets but fails to fold them mentally into functional 3D objects.	AC9M7SP01 represent objects in 2 dimensions; discuss and reason about the advantages and disadvantages of different representations	Drafts precise orthographic projections (top, front, side views) of complex 3D structures.	Critiques technical blueprints, identifying impossible geometric flaws in 2D renderings of 3D objects.
Cannot identify a transversal line.	Memorizes angle names but misapplies them to non-parallel intersecting lines.	AC9M7M04 identify corresponding, alternate and co-interior relationships between angles formed when parallel lines are crossed by a transversal; use them to solve problems and explain reasons	Solves intricate “zig-zag” transversal puzzles by constructing auxiliary parallel lines.	Constructs formal, logical proofs verifying that two lines are parallel based solely on given angle data.
Believes larger triangles have larger interior angles.	Uses the 180° rule for triangles but guesses the sums for quadrilaterals.	AC9M7M05 demonstrate that the interior angle sum of a triangle in the plane is 180° and apply this to determine the interior angle sum of other shapes and the size of unknown angles	Partitions complex, irregular convex polygons to systematically calculate their total interior angle sum.	Derives the generalized formula (n−2)×180∘ for any n-sided polygon through rigorous geometric deduction.