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Changing Grades Task: Correlation and Geometric Transformations

Changing Grades Task: Correlation and Geometric Transformations
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2017-06-17 17:55
Coordinate GeometryProbability & StatisticsTransformationGeometric Construction
In collections LINEAR FUNCTIONS
This example demonstrates the dynamic relationship between grade data changes and statistical features. Core concepts include correlation analysis, confidence intervals, and geometric transformations. Construction utilizes GeoGebra commands like Textfield, Point, Line, Polygon, OrthogonalLine, and RotateText to build an interactive interface. Suitable for high school or university statistics and geometry courses to aid understanding of abstract concepts.

GeoGebra Commands & Parameters

  1. Textfield(a) → InputBox1
  2. Point(xAxis) → G
  3. Point(xAxis) → H
  4. Line(G, H) → f
  5. Point(yAxis) → I
  6. Point(yAxis) → J
  7. Line(I, J) → g
  8. Polygon((0, 0), (0, 120), (120, 120), (120, 0)) → poly1, j, k, l, m
  9. OrthogonalLine(K, g) → h
  10. OrthogonalLine(K, h) → i
  11. Textfield(c) → InputBox2
  12. Point(q) → M
  13. Textfield(r) → InputBox3
  14. Point(s) → R
  15. Textfield(d) → InputBox4
  16. RotateText("grade after change", 90°) → text12
  17. TableText({{A1, B1, C1}, {A2, B2, C2}, {A3, B3, C3}, {A4, B4, C4}, {A5, B5, C5}, {A6, B6, C6}, {A7, B7, C7}, {A8, B8, C8}, {A9, B9, C9}, {A10, B10, C10}, {A11, B11, C11}, {A12, B12, C12}, {A13, B13, C13}, {A14, B14, C14}, {A15, B15, C15}, {A16, B16, C16}, {A17, B17, C17}, {A18, B18, C18}, {A19, B19, C19}, {A20, B20, C20}, {A21, B21, C21}, {A22, B22, C22}}, "|_") → text8