Area & Volume
Students work with a scaled floorplan of four rooms, adjust the drawing scale to calculate real floor area, then set a ceiling height and extend the same plan into a 3D…
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Mathematics · Measurement & Trigonometry
Students compare the effect of changing height against changing radius, then design a can to hit a target capacity, with the volume change from each adjustment shown side by side. The full interactive is available to licensed Education Universe users.
Ask students to predict whether doubling the radius or the height has a bigger effect before testing.
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Students work with a scaled floorplan of four rooms, adjust the drawing scale to calculate real floor area, then set a ceiling height and extend the same plan into a 3D…
Ten randomised area questions spanning triangles, parallelograms, trapeziums, rhombuses, kites and composite shapes, with new values on each attempt. The full…
A guided Year 8 investigation showing how the area formulas for parallelograms, trapeziums, rhombuses, kites and composite shapes are derived by rearranging, duplicating…
Predict how many small squares fit in a larger one and fill it row by row, practise conversions on a km² → mm² ladder, and compare real objects with 1 m², 1 ha and 1 km².
Students investigate where the formula A = πr² comes from by progressively slicing a circle into sectors and rearranging them into a rectangle-like shape. They work…
A guided investigation in which students connect radius, diameter and circumference, measure how many diameters fit around a circle, discover π as the…
Cylinder & Can Investigation is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.