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Number Decomposition and Polygon Area Summation Practice

Number Decomposition and Polygon Area Summation Practice
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2020-11-03 07:14
PolygonFunctionSequenceIntegralGeometric Construction
In collections Grade 2 Eureka M4L6
This GeoGebra example demonstrates a comprehensive mathematical exercise combining number decomposition, polygon construction, and area summation. It shows how to break natural numbers into hundreds, tens, and units using commands like Make100, Make10, and Make1, then uses these digits to generate multiple polygons (poly1, poly2, poly3) and compute their total area via the Sum command. Core mathematical concepts include place value of natural numbers, polygon area calculation, and an introduction to definite integrals through area accumulation. The construction uses the Polygon command to draw shapes, text objects (text51, text52, text53, etc.) to label numbers, and auxiliary points (C_2, D_2, E_2, etc.) to control the geometry. This example is suitable for upper elementary to middle school students, reinforcing number decomposition, area computation, and geometric visualization, and can serve as a template for teachers designing differentiated practice problems.

GeoGebra Commands & Parameters

  1. Polygon(C_2, D_2, E_2, F_2) → poly1, c_5, d_5, e_4, f_4
  2. Polygon(F_2, E_2, G_2, H_2) → poly2, f_5, e_5, g_4, h_4
  3. Polygon(H_2, G_2, I_2, J_2) → poly3, h_5, g_5, i_2, j_2
  4. Make100(A) → c, text1
  5. Make100(B) → d, text2
  6. Make100(C) → e, text3
  7. Make100(D) → f, text4
  8. Make100(E) → g, text5
  9. Make100(F) → h, text6
  10. Make100(G) → k, text7
  11. Make100(H) → p, text8
  12. Make100(I) → q, text9
  13. Make100(J) → r, text10
  14. Make10(K) → s, text11
  15. Make10(L) → t, text12
  16. Make10(M) → c_1, text13
  17. Make10(N) → d_1, text14
  18. Make10(O) → e_1, text15
  19. Make10(P) → f_1, text16
  20. Make10(Q) → g_1, text17
  21. Make10(R) → h_1, text18
  22. Make10(S) → k_1, text19
  23. Make10(T) → p_1, text20
  24. Make10(U) → q_1, text21
  25. Make10(V) → r_1, text22
  26. Make10(W) → s_1, text23
  27. Make10(Z) → t_1, text24
  28. Make10(A_1) → c_2, text25
  29. Make10(B_1) → d_2, text26
  30. Make10(C_1) → e_2, text27
  31. Make10(D_1) → f_2, text28
  32. Make10(E_1) → g_2, text29
  33. Make10(F_1) → h_2, text30
  34. Make1(G_1) → k_2, text31
  35. Make1(H_1) → p_2, text32
  36. Make1(I_1) → q_2, text33
  37. Make1(J_1) → r_2, text34
  38. Make1(K_1) → s_2, text35
  39. Make1(L_1) → t_2, text36
  40. Make1(M_1) → c_3, text37
  41. Make1(N_1) → d_3, text38
  42. Make1(O_1) → e_3, text39
  43. Make1(P_1) → f_3, text40
  44. Make1(Q_1) → g_3, text41
  45. Make1(R_1) → h_3, text42
  46. Make1(S_1) → k_3, text43
  47. Make1(T_1) → p_3, text44
  48. Make1(U_1) → q_3, text45
  49. Make1(V_1) → r_3, text46
  50. Make1(W_1) → s_3, text47
  51. Make1(Z_1) → t_3, text48
  52. Make1(A_2) → c_4, text49
  53. Make1(B_2) → d_4, text50
  54. Polygon(D_2, K_2, L_2, E_2) → poly4, d_6, k_4, l_2, e_6
  55. Polygon(E_2, L_2, M_2, G_2) → poly5, e_7, l_1, m_2, g_6
  56. Polygon(G_2, M_2, N_2, I_2) → poly6, g_7, m_1, n_2, i_1
  57. Sum(Sequence[IsInRegion[Element[listOnes, i], poly6], i, 1, 20]) → valueOnes

AI Drawing Prompt Reference

On a plane, first choose a base set of four control points. Draw three adjacent quadrilaterals in sequence by connecting their vertices: the first quadrilateral is formed from the first four points, the second quadrilateral shares one edge with the first (formed using the next set of four points), and the third shares an edge with the second to create a stepped continuous strip. Next, decompose several natural numbers into hundreds, tens, and ones. Place text labels next to the relevant control points to indicate the digits for the hundreds group, the tens group, and the ones group, so that the vertices used for the quadrilaterals are accompanied by the corresponding numerical annotations. Follow an order of constructing polygons first, then adding the digit decomposition labels.
The prompt above was compiled from the original drawing commands and is for reference only.