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Positions on the Number Line with Fractions and Decimals

Positions on the Number Line with Fractions and Decimals
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2019-12-24 01:29
VectorSequenceCoordinate Geometry
This example demonstrates how to represent fractions and decimals on a number line. Key mathematical concepts include the representation of fractions and decimals. Using GeoGebra commands such as Point, Segment, Sequence, etc., points and segments on the number line can be constructed. Suitable for high-grade elementary and junior high school students to learn the representation of positions on the number line.

GeoGebra Commands & Parameters

  1. Point(yAxis) → B
  2. Segment((0, -0.55), (0, -0.8)) → b
  3. Sequence(Segment[(i, 0), (i, -0.25)], i, 0, 4) → list6
  4. Sequence(Segment[(((2 * i) - 1) / 2, 0), (((2 * i) - 1) / 2, -0.2)], i, 1, 4) → list7
  5. Sequence(Sequence[Segment[(i / 2 + (0.1 * j), 0), (i / 2 + (0.1 * j), -0.15)], j, 1, 4], i, 0, 7) → list8
  6. Sequence(Sequence[Segment[(i / 20 + (0.01 * j), 0), (i / 20 + (0.01 * j), -0.06)], j, 1, 4], i, 0, 79) → list9
  7. Sequence(Segment[(((2 * i) - 1) / 20, 0), (((2 * i) - 1) / 20, -0.1)], i, 1, 40) → list10
  8. Point(Sequence[(i, L / 2), i, 0, 4, 0.01]) → A
  9. Vector((0, 0), (4.15, 0)) → a
  10. Vector(A, (x(A), 0)) → u
  11. Point(Sequence[(i, L / 2), i, 0, 4, 0.01]) → A'
  12. Vector(A', (x(A'), 0)) → v