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Adding Negative Integers with the Same Sign

Adding Negative Integers with the Same Sign
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2017-02-11 04:54
VectorSequenceCoordinate GeometryGeometric ConstructionSlider Animation
This example demonstrates the addition of negative integers with the same sign, visually representing numerical changes through dynamic graphics. Core math concepts include negative integer operations, number line representation, and vector addition. GeoGebra commands used in construction are Sequence (sequence), Segment (segment), Midpoint (midpoint), and Vector (vector). Suitable for junior high school mathematics teaching, helping students understand the rules of negative number addition and vector composition principles.

GeoGebra Commands & Parameters

  1. Sequence((i, (-0.4)), i, -10, 0) → D
  2. Sequence((i, 0.4), i, -10, 0) → C
  3. Segment(A, B) → a
  4. Midpoint(E, F) → I
  5. Midpoint(G, H) → J
  6. Sequence(Segment[Element[C, i], Element[D, i]], i, 1, 17) → b
  7. Sequence(Segment[Element[C, i], Element[D, i]], i, 1, 17) → Sequence[Segment[Element[C, i], Element[D, i]], i, 1, 13]
  8. Vector((-7, 0), A) → u
  9. Segment((0, 0.25), K) → g
  10. Segment(M, L) → f
  11. Vector((0, 0), B) → v