负整数减法几何演示

GeoGebra 命令及参数

1. Segment(StartPoint, EndPoint) → NumberLine
2. Textfield(inputans) → InputBox1
3. Random(1, 10) → negint
4. Random(10, 25) → posint
5. Segment(Origin, (0, -3)) → connect1
6. LaTeX(Text["\checkmark"]) → RightCheck
7. LaTeX(Text["×"]) → WrongCheck
8. Text(negint - posint) → correctans
9. Point(Num1Height) → Num1Point
10. Point(Num2Height) → Num2Point
11. Segment(Num2Point, (x(Num2Point), 0)) → connect3
12. LaTeX(Text[position1]) → Highlight1Display
13. LaTeX(Text[position2]) → Highlight2Display
14. Segment(Num1Point, (x(Num1Point), 0)) → connect2
15. Circle((i1, height), r) → C1
16. Circle((i2, height), r) → C2
17. Circle((i3, height), r) → C3
18. Circle((i4, height), r) → C4
19. Circle((i5, height), r) → C5
20. Circle((i6, height), r) → C6
21. Circle((i7, height), r) → C7
22. Midpoint((0, 1.2), Num1Point) → Num1DisplayLocation
23. Midpoint((x(Num1Point), 2.4), Num2Point) → Num2DisplayLocation
24. Circle((i8, height), r) → C8
25. Circle((i9, height), r) → C9
26. Circle((i10, height), r) → C10
27. Circle((i0, height), r) → C0
28. Circle((in1, height), r) → Cn1
29. Circle((in2, height), r) → Cn2
30. LaTeX(Text["Model\ the\ sum\ on\ the\ number\ line.\ Then,\,complete\ the\ subtraction\ statement."]) → Instructions1
31. Sequence((i, 0), i, x(StartPoint) + 2, x(EndPoint) - 2, 1) → SmallTicks
32. Sequence((i, 0), i, x(StartPoint) + 2, x(EndPoint) - 2, 5) → Ticks
33. Vector((0, 1), Num1Point) → negvector
34. Vector((x(Num1Point), 2), Num2Point) → posvector
35. Sequence(Text[i, (i - 0.35, -1.2)], i, x(StartPoint) + 2, x(EndPoint) - 2, 5) → Numbers