Year 10 Explaining, convincing and proving

  • Harmonic Triangle
    problem
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    Harmonic Triangle

    Age
    14 to 16
    Challenge level
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    Can you see how to build a harmonic triangle? Can you work out the next two rows?

  • Which spinners?
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    Which Spinners?

    Age
    14 to 18
    Challenge level
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    Can you work out which spinners were used to generate the frequency charts?

  • Trapezium made of wooden tangram pieces, including a square and a parallelogram.
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    Quad in Quad

    Age
    14 to 18
    Challenge level
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    Join the midpoints of a quadrilateral to get a new quadrilateral. What is special about it?

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