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Locating Fractions and Decimals on a Number Line

Locating Fractions and Decimals on a Number Line
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2017-11-29 13:23
TrigonometryCoordinate GeometryProbability & StatisticsGeometric Construction
This example demonstrates how to accurately mark the positions of fractions and decimals on a number line. It involves core math concepts like number line, fractions, decimals, percentages, circle, congruence, standard deviation, and distributions. The construction utilizes GeoGebra commands/objects such as OrthogonalLine, Circle, Intersect, Segment, Sequence, Random, Polygon, and Vector. Suitable for middle school and above students to visually understand the representation of real numbers on a number line.

GeoGebra Commands & Parameters

  1. OrthogonalLine(A, yAxis) → a
  2. Circle(A, b) → c
  3. Intersect(c, a, 1) → B
  4. Segment(A, B) → d
  5. Sequence((x(A) + (i * intervalsize), y(A)), i, 1, intervals) → list1
  6. Segment(D, E) → g
  7. Random(2, 12) → denominator
  8. Segment(F, H) → i
  9. Polygon(J, K, L, I) → poly1, j_1, k_1, l, i_1
  10. Polygon(K, M, N, L) → poly2, k_2, m, n, l_1
  11. Polygon(M, O, P, N) → poly3, m_1, o, p, n_1
  12. Vector(Q, R) → u