Question P3 Seeing it move
Are the shown intersecting lines perpendicular or parallel?
Answer
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Work out where the pieces land after a fold, cut or stack.
In this one. Perpendicular lines meet at right angles; parallel lines remain the same distance apart.
Words like 'folded', 'cut along the dotted line' or 'stacked' appear beside a shape, and the question asks for a length or angle that only makes sense once the pieces are in their new positions.
Children try to calculate the answer before working out where the pieces actually end up, skipping the visualisation step that the whole question depends on.
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