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Key measurements first

Key measurements first

Cone and sphere with radius, diameter, vertical height and slant height labelled

A sphere is perfectly round, and a cone has a circular base and a single point. In both shapes, the radius rrr is the key measurement, while a cone also uses vertical height hhh and sometimes slant height lll.

Spheres and Cones Lesson

  1. GCSE
  2. /Maths
  3. /Spheres and Cones

Step-by-step lessons covering OCR GCSE Maths Spheres and Cones for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

Writing a Ratio as a Fraction or Linear FunctionDirect and Inverse ProportionReverse PercentagesStandard FormSpeed and DensityChanging the Subject of a FormulaExpanding and Factorising QuadraticsSolving QuadraticsDrawing Quadratic GraphsSimultaneous EquationsSolving Simultaneous Equations GraphicallyGradient of a LineEquation of a LineSpheres and ConesSector Areas and Arc LengthsSimilar Shapes (Lengths)Exact trig valuesProbability TreesVenn Diagrams