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Simple Fraction Addition-for Junior Class

Simple Fraction Addition-for Junior Class
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2020-11-01 01:21
CircleAngleTrigonometryGeometric ConstructionSlider Animation
This example demonstrates the process of adding simple fractions. Key math concepts include fraction addition, Least Common Multiple (LCM), and text display. GeoGebra commands/objects used are: Circle, Point, Segment, Sequence, Rotate, Angle, CircleSector, LCM, Textfield. Suitable for junior students learning fraction addition.

GeoGebra Commands & Parameters

  1. Circle(A, 3) → c
  2. Circle(B, 3) → d_1
  3. Point(c) → C
  4. Point(d_1) → D_1
  5. Segment(A, C) → f
  6. Segment(B, D_1) → g
  7. Sequence(Segment[A, Rotate[C, f°, A]], f, (360°) / d, 360, 360 / d) → l1
  8. Sequence(Segment[B, Rotate[D_1, g°, B]], g, (360°) / D, 360, 360 / D) → l2
  9. Rotate(C, (360° * n / d), A) → C'
  10. Angle(C, A, C') → α
  11. Rotate(D_1, (360° * N / D), B) → D'
  12. Angle(D_1, B, D') → β
  13. CircleSector(A, C, C') → e
  14. CircleSector(B, D_1, D') → h
  15. LCM(d, D) → s
  16. Textfield(n) → InputBox1
  17. Textfield(d) → InputBox2
  18. Textfield(N) → InputBox3
  19. Textfield(D) → InputBox4

AI Drawing Prompt Reference

Draw two circles A and B with radius 3. Take a point C on circle A and a point D1 on circle B. Connect point A to C and point B to D1. Then rotate point C around point A and rotate point D1 around point B to form a series of sectors. Finally, display the least common multiple of d and D, and input n and N to control the rotation angle.
The prompt above was compiled from the original drawing commands and is for reference only.