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Simple Addition/Subtraction Demo

Simple Addition/Subtraction Demo
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2016-02-08 13:39
Geometric Construction
This example demonstrates the visualization process of simple addition and subtraction operations. It involves core mathematical concepts such as addition, subtraction, continuity, straight lines, and circumcircle. The construction utilizes GeoGebra commands/objects like Random (random number generation), Polygon (polygon creation), Doublearrow (bidirectional arrow), Sequence (sequence generation), and Textfield (text input). Suitable for elementary or middle school students learning basic mathematical operations.

GeoGebra Commands & Parameters

  1. Random(1, 10) → b
  2. Random(1, 10) → a
  3. Random(1, 3) → qr
  4. Random(0, 1) → er
  5. Random(0, 1) → or
  6. Polygon({(0, 0), (a, 0), (a, t), (0, t)}) → p1
  7. Doublearrow((0, 0), (a, 0), -0.5) → list1
  8. Doublearrow((a, 0), (a + b, 0), -0.5) → list2
  9. Polygon({(a, 0), (a + b, 0), (a + b, t), (a, t)}) → p2
  10. Doublearrow((0, 0), (a + b, 0), 1.5) → list3
  11. Sequence((i, 0), i, 0, a + b) → pl
  12. Sequence((i, 1), i, 0, a + b) → pu
  13. Sequence(Segment[Element[pl, k], Element[pu, k]], k, 0, a + b + 1) → segs
  14. Textfield(answer) → InputBox1