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Adding to 20

Adding to 20
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2020-05-19 00:37
SequenceCoordinate GeometryGeometric Construction
This example demonstrates adding numbers to 20. Key math concepts include addition. GeoGebra commands used include Random, Sequence, Vector, Textfield, etc. Suitable for high-grade elementary or low-grade middle school students for addition practice.

GeoGebra Commands & Parameters

  1. Random(3, 9) → p1
  2. Random(11 - p1, 10) → p2
  3. Sequence((1, i), i, 1, p1) → lista1
  4. Sequence((5, i), i, 1, p2) → lista2
  5. Sequence(Translate[Element[lista2, p2 - i], Vector[Element[lista2, p2], (1, 10)]], i, 0, 9 - p1) → lista3
  6. Vector(Element[lista2, p2], (1, 10)) → u
  7. Sequence(Translate[Element[lista2, p2 - i], Vector[(b * Vector[Element[lista2, p2], (1, 10)])]], i, 0, 9 - p1) → lista4
  8. Sequence(Element[lista2, i], i, 1, p2 - (10 - p1)) → lista5
  9. Textfield(rez) → txtPolje1
  10. Segment(A, B) → c