A diagram-labelling sheet on triangles and parallelograms for Year 6 maths. Pupils label six parts across the two shapes, picking terms like triangle base, parallelogram perpendicular height and right angle symbol from a word bank. Knowing which height is perpendicular is the point: it is the step pupils miss when they meet the area formulae. Answer key included. Matched to England National Curriculum area objectives.
Measurement
“Calculate the area of parallelograms and triangles”
Naming base and perpendicular height correctly is the prerequisite for both formulae.
Measurement
“Recognise when it is possible to use formulae for area and volume of shapes”
The slant-side label shows why the slant length never enters the formula.
Six labels, A to F, on a parallelogram and triangle diagram.
Six terms, including parallelogram slant side and triangle perpendicular height.
The correct label for every point.
Pre-teach check
Label the parts before introducing area formulae, so the vocabulary is in place.
Intervention group
Targets the slant-side-versus-height confusion directly.
Book evidence
One labelled diagram records the key vocabulary for the unit.
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