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Find Missing Number in Arithmetic Sequence

Find Missing Number in Arithmetic Sequence
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2020-05-13 02:56
SequenceGeometric ConstructionSlider Animation
This example demonstrates how to identify a missing number in an arithmetic sequence. It involves core math concepts like the properties of arithmetic sequences and the general term formula. Construction highlights include using GeoGebra commands such as Random, RandomElement, Polygon, Point, Segment, Shuffle, Element, and Textfield to create random polygons and mark missing elements. Suitable for middle school and above, this tool aids in understanding arithmetic sequence applications and geometric representations.

GeoGebra Commands & Parameters

  1. Random(-15, 15) → b
  2. RandomElement(list1) → a
  3. Polygon(A, B, C, D) → q1, a_1, b_1, c, d
  4. Point(b_1) → E
  5. Point(d) → F
  6. Segment(E, F) → g
  7. Point(b_1) → G
  8. Segment(G, H) → h
  9. Point(b_1) → I
  10. Segment(I, J) → i
  11. Point(b_1) → K
  12. Point(d) → L
  13. Segment(K, L) → j
  14. Point(b_1) → M
  15. Segment(M, N) → k
  16. Point(b_1) → O
  17. Point(d) → P
  18. Segment(O, P) → l
  19. Point(b_1) → Q
  20. Point(d) → R
  21. Segment(Q, R) → m
  22. Shuffle(list2) → list3, {0, 0, 0, 1, 0, 0, 0, 1}
  23. Element(list3, 1) → e1
  24. Element(list3, 2) → e2
  25. Element(list3, 3) → e3
  26. Element(list3, 4) → e4
  27. Element(list3, 5) → e5
  28. Element(list3, 6) → e6
  29. Element(list3, 7) → e7
  30. Element(list3, 8) → e8
  31. Textfield(empty) → InputBox1