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Positive and Negative Coins

Positive and Negative Coins
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2016-08-09 13:26
CircleFunctionGeometric Construction
This example demonstrates the addition of positive and negative numbers through dynamic geometry, visually showing the叠加 effect of numerical values; core math concepts include integer operations, number line representation, and sign rules; construction highlights use of the Circle command to draw geometric objects like A, B, A_1, etc., representing numbers; suitable for junior high school mathematics teaching to help students understand abstract number operations;

GeoGebra Commands & Parameters

  1. Circle(A_1, B_1) → c_1
  2. Circle(A_2, B_2) → c_2
  3. Circle(A_{11}, B_{11}) → c_{11}
  4. Circle(A_{19}, B_{19}) → c_{19}
  5. Circle(A_{22}, B_{22}) → c_4
  6. Circle(A_{23}, B_{23}) → c_3
  7. Circle(A_{20}, B_{20}) → c_6
  8. Circle(A_{21}, B_{21}) → c_5
  9. Circle(A_{26}, B_{26}) → c_8
  10. Circle(A_{27}, B_{27}) → c_7
  11. Circle(A_{24}, B_{24}) → c_{10}
  12. Circle(A_{25}, B_{25}) → c_9
  13. Circle(A_{30}, B_{30}) → c_{13}
  14. Circle(A_{31}, B_{31}) → c_{12}
  15. Circle(A_{28}, B_{28}) → c_{15}
  16. Circle(A_{29}, B_{29}) → c_{14}
  17. Circle(A_{34}, B_{34}) → c_{17}
  18. Circle(A_{35}, B_{35}) → c_{16}
  19. Circle(A_{32}, B_{32}) → c_{20}
  20. Circle(A_{33}, B_{33}) → c_{18}
  21. Circle(A_{38}, B_{38}) → c_{22}
  22. Circle(A_{39}, B_{39}) → c_{21}
  23. Circle(A_{36}, B_{36}) → c_{24}
  24. Circle(A_{37}, B_{37}) → c_{23}
  25. Circle(A_{40}, B_{40}) → c_{25}
  26. Circle(A_{41}, B_{41}) → c_{26}
  27. Circle(A_{42}, B_{42}) → c_{27}
  28. Circle(A_{43}, B_{43}) → c_{30}
  29. Circle(A_{45}, B_{45}) → c_{28}
  30. Circle(A_{44}, B_{44}) → c_{29}
  31. Circle(A_{46}, B_{46}) → c_{33}
  32. Circle(A_{47}, B_{47}) → c_{32}
  33. Circle(A_{48}, B_{48}) → c_{31}
  34. Circle(A_{51}, B_{51}) → c_{34}
  35. Circle(A_{50}, B_{50}) → c_{35}
  36. Circle(A_{49}, B_{49}) → c_{36}