用单位立方体铺满长方体的体积与单位替换
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该范例演示如何用单位立方体计数来填满长方体,并进一步探究当单位立方体尺寸变化时填充与体积结果是否仍成立。核心数学概念包括:长方体体积=底面积×高、单位体积立方体的“分解计数”思想、单位从1 m^3(或给定体积为1的立方体)到1 mm^3等不同尺度时体积单位与计数方式的对应关系,以及通过几何分割检验“用更大单位体积立方体能否同样铺满”的条件。作图与交互要点:利用多边形面构成立方体/长方体轮廓,借助旋转与拼接完成立方体阵列,随后使用计数逻辑统计能放入的单位块数量,并在必要时对“体积单位”或“个数×单位体积”的推断给出纠错提示;对应GeoGebra构造摘要中使用了 Join、Rotate、Polygon、CountIf、If、Segment、Textfield、Midpoint 等命令,以及如 A_1…A_16、ListA、sliderA/sliderB/sliderC、questionCount、nums、lNums、winkel、lA/lB/lC 等对象来支撑几何构建、参数控制与文本反馈。适合5-6年级立体几何入门到体积理解与单位换算的课堂探究,也可用于开放题讨论与分层练习。
GeoGebra 命令及参数
Join({{1}, nums}) → lNumsRotate(B + ((sliderB * verzerrung), 0), winkel, B) → CRotate(F + ((sliderB * verzerrung), 0), winkel, F) → GRotate(E + ((sliderB * verzerrung), 0), winkel, E) → HPolygon(I, J, K, L) → region, i_{16}, j_{16}, k_{16}, l_{16}CountIf(IsInRegion[P, region], P, {A_{10}, A_{11}, A_{12}, A_{13}, A_{14}, A_{15}, A_{2}, A_{3}, A_{4}, A_{5}, A_{6}, A_{7}, A_{8}, A_{9}, A_1, A_{16}}) → objectsInRegionIf(bsp ≟ 1, CountIf[x > 1, Bsp1], If[bsp ≟ 2, CountIf[x > 1, Bsp2], If[bsp ≟ 3, CountIf[x > 1, Bsp3], If[bsp ≟ 4, CountIf[x > 1, Bsp4], If[bsp ≟ 5, CountIf[x > 1, Bsp5], If[bsp ≟ 6, CountIf[x > 1, Bsp6], If[bsp ≟ 7, CountIf[x > 1, Bsp7], If[bsp ≟ 8, CountIf[x > 1, Bsp8]]]]]]]]) → doubleRotate(A + ((sliderB * verzerrung), 0), winkel, A) → DSegment(A, B) → fSegment(A, D) → gSegment(D, C) → hSegment(C, B) → iSegment(B, F) → jSegment(F, G) → kSegment(G, C) → lSegment(G, H) → mSegment(H, E) → nSegment(E, A) → pSegment(H, D) → qSegment(F, E) → rRotate(B_1 + ((sliderB_1 * verzerrung), 0), winkel, B_1) → C_1Rotate(A_1 + ((sliderB_1 * verzerrung), 0), winkel, A_1) → D_1Rotate(F_1 + ((sliderB_1 * verzerrung), 0), winkel, F_1) → G_1Rotate(E_1 + ((sliderB_1 * verzerrung), 0), winkel, E_1) → H_1Segment(A_1, B_1) → sSegment(B_1, F_1) → tSegment(F_1, E_1) → aSegment(E_1, A_1) → bSegment(A_1, D_1) → cSegment(D_1, H_1) → dSegment(B_1, C_1) → eSegment(E_1, H_1) → f_1Segment(H_1, G_1) → g_1Segment(F_1, G_1) → h_1Segment(G_1, C_1) → i_1Segment(D_1, C_1) → j_1Polygon(E_1, H_1, G_1, C_1, B_1, A_1) → poly1, e_1, k_1, l_1, c_1, b_1, a_1Rotate(B_{2} + ((sliderB_1 * verzerrung), 0), winkel, B_{2}) → C_{2}Rotate(A_{2} + ((sliderB_1 * verzerrung), 0), winkel, A_{2}) → D_{2}Rotate(F_{2} + ((sliderB_1 * verzerrung), 0), winkel, F_{2}) → G_{2}Rotate(E_{2} + ((sliderB_1 * verzerrung), 0), winkel, E_{2}) → H_{2}Segment(A_{2}, B_{2}) → s_{1}Segment(B_{2}, F_{2}) → t_{1}Segment(F_{2}, E_{2}) → a_{2}Segment(E_{2}, A_{2}) → b_{2}Segment(A_{2}, D_{2}) → c_{2}Segment(D_{2}, H_{2}) → d_{1}Segment(B_{2}, C_{2}) → e_{2}Segment(E_{2}, H_{2}) → f_{2}Segment(H_{2}, G_{2}) → g_{2}Segment(F_{2}, G_{2}) → h_{2}Segment(G_{2}, C_{2}) → i_{2}Segment(D_{2}, C_{2}) → j_{2}Polygon(E_{2}, H_{2}, G_{2}, C_{2}, B_{2}, A_{2}) → poly1_{1}, e_{3}, k_{2}, l_{2}, c_{3}, b_{3}, a_{3}Rotate(B_{3} + ((sliderB_1 * verzerrung), 0), winkel, B_{3}) → C_{3}Rotate(A_{3} + ((sliderB_1 * verzerrung), 0), winkel, A_{3}) → D_{3}Rotate(F_{3} + ((sliderB_1 * verzerrung), 0), winkel, F_{3}) → G_{3}Rotate(E_{3} + ((sliderB_1 * verzerrung), 0), winkel, E_{3}) → H_{3}Segment(A_{3}, B_{3}) → s_{2}Segment(B_{3}, F_{3}) → t_{2}Segment(F_{3}, E_{3}) → a_{4}Segment(E_{3}, A_{3}) → b_{4}Segment(A_{3}, D_{3}) → c_{4}Segment(D_{3}, H_{3}) → d_{2}Segment(B_{3}, C_{3}) → e_{4}Segment(E_{3}, H_{3}) → f_{3}Segment(H_{3}, G_{3}) → g_{3}Segment(F_{3}, G_{3}) → h_{3}Segment(G_{3}, C_{3}) → i_{3}Segment(D_{3}, C_{3}) → j_{3}Polygon(E_{3}, H_{3}, G_{3}, C_{3}, B_{3}, A_{3}) → poly1_{2}, e_{5}, k_{3}, l_{3}, c_{5}, b_{5}, a_{5}Rotate(B_{4} + ((sliderB_1 * verzerrung), 0), winkel, B_{4}) → C_{4}Rotate(A_{4} + ((sliderB_1 * verzerrung), 0), winkel, A_{4}) → D_{4}Rotate(F_{4} + ((sliderB_1 * verzerrung), 0), winkel, F_{4}) → G_{4}Rotate(E_{4} + ((sliderB_1 * verzerrung), 0), winkel, E_{4}) → H_{4}Segment(A_{4}, B_{4}) → s_{3}Segment(B_{4}, F_{4}) → t_{3}Segment(F_{4}, E_{4}) → a_{6}Segment(E_{4}, A_{4}) → b_{6}Segment(A_{4}, D_{4}) → c_{6}Segment(D_{4}, H_{4}) → d_{3}Segment(B_{4}, C_{4}) → e_{6}Segment(E_{4}, H_{4}) → f_{4}Segment(H_{4}, G_{4}) → g_{4}Segment(F_{4}, G_{4}) → h_{4}Segment(G_{4}, C_{4}) → i_{4}Segment(D_{4}, C_{4}) → j_{4}Polygon(E_{4}, H_{4}, G_{4}, C_{4}, B_{4}, A_{4}) → poly1_{3}, e_{7}, k_{4}, l_{4}, c_{7}, b_{7}, a_{7}Rotate(B_{5} + ((sliderB_1 * verzerrung), 0), winkel, B_{5}) → C_{5}Rotate(A_{5} + ((sliderB_1 * verzerrung), 0), winkel, A_{5}) → D_{5}Rotate(F_{5} + ((sliderB_1 * verzerrung), 0), winkel, F_{5}) → G_{5}Rotate(E_{5} + ((sliderB_1 * verzerrung), 0), winkel, E_{5}) → H_{5}Segment(A_{5}, B_{5}) → s_{4}Segment(B_{5}, F_{5}) → t_{4}Segment(F_{5}, E_{5}) → a_{8}Segment(E_{5}, A_{5}) → b_{8}Segment(A_{5}, D_{5}) → c_{8}Segment(D_{5}, H_{5}) → d_{4}Segment(B_{5}, C_{5}) → e_{8}Segment(E_{5}, H_{5}) → f_{5}Segment(H_{5}, G_{5}) → g_{5}Segment(F_{5}, G_{5}) → h_{5}Segment(G_{5}, C_{5}) → i_{5}Segment(D_{5}, C_{5}) → j_{5}Polygon(E_{5}, H_{5}, G_{5}, C_{5}, B_{5}, A_{5}) → poly1_{4}, e_{9}, k_{5}, l_{5}, c_{9}, b_{9}, a_{9}Rotate(B_{6} + ((sliderB_1 * verzerrung), 0), winkel, B_{6}) → C_{6}Rotate(A_{6} + ((sliderB_1 * verzerrung), 0), winkel, A_{6}) → D_{6}Rotate(F_{6} + ((sliderB_1 * verzerrung), 0), winkel, F_{6}) → G_{6}Rotate(E_{6} + ((sliderB_1 * verzerrung), 0), winkel, E_{6}) → H_{6}Segment(A_{6}, B_{6}) → s_{5}Segment(B_{6}, F_{6}) → t_{5}Segment(F_{6}, E_{6}) → a_{10}Segment(E_{6}, A_{6}) → b_{10}Segment(A_{6}, D_{6}) → c_{10}Segment(D_{6}, H_{6}) → d_{5}Segment(B_{6}, C_{6}) → e_{10}Segment(E_{6}, H_{6}) → f_{6}Segment(H_{6}, G_{6}) → g_{6}Segment(F_{6}, G_{6}) → h_{6}Segment(G_{6}, C_{6}) → i_{6}Segment(D_{6}, C_{6}) → j_{6}Polygon(E_{6}, H_{6}, G_{6}, C_{6}, B_{6}, A_{6}) → poly1_{5}, e_{11}, k_{6}, l_{6}, c_{11}, b_{11}, a_{11}Rotate(B_{7} + ((sliderB_1 * verzerrung), 0), winkel, B_{7}) → C_{7}Rotate(A_{7} + ((sliderB_1 * verzerrung), 0), winkel, A_{7}) → D_{7}Rotate(F_{7} + ((sliderB_1 * verzerrung), 0), winkel, F_{7}) → G_{7}Rotate(E_{7} + ((sliderB_1 * verzerrung), 0), winkel, E_{7}) → H_{7}Segment(A_{7}, B_{7}) → s_{6}Segment(B_{7}, F_{7}) → t_{6}Segment(F_{7}, E_{7}) → a_{12}Segment(E_{7}, A_{7}) → b_{12}Segment(A_{7}, D_{7}) → c_{12}Segment(D_{7}, H_{7}) → d_{6}Segment(B_{7}, C_{7}) → e_{12}Segment(E_{7}, H_{7}) → f_{7}Segment(H_{7}, G_{7}) → g_{7}Segment(F_{7}, G_{7}) → h_{7}Segment(G_{7}, C_{7}) → i_{7}Segment(D_{7}, C_{7}) → j_{7}Polygon(E_{7}, H_{7}, G_{7}, C_{7}, B_{7}, A_{7}) → poly1_{6}, e_{13}, k_{7}, l_{7}, c_{13}, b_{13}, a_{13}Rotate(B_{8} + ((sliderB_1 * verzerrung), 0), winkel, B_{8}) → C_{8}Rotate(A_{8} + ((sliderB_1 * verzerrung), 0), winkel, A_{8}) → D_{8}Rotate(F_{8} + ((sliderB_1 * verzerrung), 0), winkel, F_{8}) → G_{8}Rotate(E_{8} + ((sliderB_1 * verzerrung), 0), winkel, E_{8}) → H_{8}Segment(A_{8}, B_{8}) → s_{7}Segment(B_{8}, F_{8}) → t_{7}Segment(F_{8}, E_{8}) → a_{14}Segment(E_{8}, A_{8}) → b_{14}Segment(A_{8}, D_{8}) → c_{14}Segment(D_{8}, H_{8}) → d_{7}Segment(B_{8}, C_{8}) → e_{14}Segment(E_{8}, H_{8}) → f_{8}Segment(H_{8}, G_{8}) → g_{8}Segment(F_{8}, G_{8}) → h_{8}Segment(G_{8}, C_{8}) → i_{8}Segment(D_{8}, C_{8}) → j_{8}Polygon(E_{8}, H_{8}, G_{8}, C_{8}, B_{8}, A_{8}) → poly1_{7}, e_{15}, k_{8}, l_{8}, c_{15}, b_{15}, a_{15}Rotate(B_{9} + ((sliderB_1 * verzerrung), 0), winkel, B_{9}) → C_{9}Rotate(A_{9} + ((sliderB_1 * verzerrung), 0), winkel, A_{9}) → D_{9}Rotate(F_{9} + ((sliderB_1 * verzerrung), 0), winkel, F_{9}) → G_{9}Rotate(E_{9} + ((sliderB_1 * verzerrung), 0), winkel, E_{9}) → H_{9}Segment(A_{9}, B_{9}) → s_{8}Segment(B_{9}, F_{9}) → t_{8}Segment(F_{9}, E_{9}) → a_{16}Segment(E_{9}, A_{9}) → b_{16}Segment(A_{9}, D_{9}) → c_{16}Segment(D_{9}, H_{9}) → d_{8}Segment(B_{9}, C_{9}) → e_{16}Segment(E_{9}, H_{9}) → f_{9}Segment(H_{9}, G_{9}) → g_{9}Segment(F_{9}, G_{9}) → h_{9}Segment(G_{9}, C_{9}) → i_{9}Segment(D_{9}, C_{9}) → j_{9}Polygon(E_{9}, H_{9}, G_{9}, C_{9}, B_{9}, A_{9}) → poly1_{8}, e_{17}, k_{9}, l_{9}, c_{17}, b_{17}, a_{17}Rotate(B_{10} + ((sliderB_1 * verzerrung), 0), winkel, B_{10}) → C_{10}Rotate(A_{10} + ((sliderB_1 * verzerrung), 0), winkel, A_{10}) → D_{10}Rotate(F_{10} + ((sliderB_1 * verzerrung), 0), winkel, F_{10}) → G_{10}Rotate(E_{10} + ((sliderB_1 * verzerrung), 0), winkel, E_{10}) → H_{10}Segment(A_{10}, B_{10}) → s_{9}Segment(B_{10}, F_{10}) → t_{9}Segment(F_{10}, E_{10}) → a_{18}Segment(E_{10}, A_{10}) → b_{18}Segment(A_{10}, D_{10}) → c_{18}Segment(D_{10}, H_{10}) → d_{9}Segment(B_{10}, C_{10}) → e_{18}Segment(E_{10}, H_{10}) → f_{10}Segment(H_{10}, G_{10}) → g_{10}Segment(F_{10}, G_{10}) → h_{10}Segment(G_{10}, C_{10}) → i_{10}Segment(D_{10}, C_{10}) → j_{10}Polygon(E_{10}, H_{10}, G_{10}, C_{10}, B_{10}, A_{10}) → poly1_{9}, e_{19}, k_{10}, l_{10}, c_{19}, b_{19}, a_{19}Rotate(B_{11} + ((sliderB_1 * verzerrung), 0), winkel, B_{11}) → C_{11}Rotate(A_{11} + ((sliderB_1 * verzerrung), 0), winkel, A_{11}) → D_{11}Rotate(F_{11} + ((sliderB_1 * verzerrung), 0), winkel, F_{11}) → G_{11}Rotate(E_{11} + ((sliderB_1 * verzerrung), 0), winkel, E_{11}) → H_{11}Segment(A_{11}, B_{11}) → s_{10}Segment(B_{11}, F_{11}) → t_{10}Segment(F_{11}, E_{11}) → a_{20}Segment(E_{11}, A_{11}) → b_{20}Segment(A_{11}, D_{11}) → c_{20}Segment(D_{11}, H_{11}) → d_{10}Segment(B_{11}, C_{11}) → e_{20}Segment(E_{11}, H_{11}) → f_{11}Segment(H_{11}, G_{11}) → g_{11}Segment(F_{11}, G_{11}) → h_{11}Segment(G_{11}, C_{11}) → i_{11}Segment(D_{11}, C_{11}) → j_{11}Polygon(E_{11}, H_{11}, G_{11}, C_{11}, B_{11}, A_{11}) → poly1_{10}, e_{21}, k_{11}, l_{11}, c_{21}, b_{21}, a_{21}Rotate(B_{12} + ((sliderB_1 * verzerrung), 0), winkel, B_{12}) → C_{12}Rotate(A_{12} + ((sliderB_1 * verzerrung), 0), winkel, A_{12}) → D_{12}Rotate(F_{12} + ((sliderB_1 * verzerrung), 0), winkel, F_{12}) → G_{12}Rotate(E_{12} + ((sliderB_1 * verzerrung), 0), winkel, E_{12}) → H_{12}Segment(A_{12}, B_{12}) → s_{11}Segment(B_{12}, F_{12}) → t_{11}Segment(F_{12}, E_{12}) → a_{22}Segment(E_{12}, A_{12}) → b_{22}Segment(A_{12}, D_{12}) → c_{22}Segment(D_{12}, H_{12}) → d_{11}Segment(B_{12}, C_{12}) → e_{22}Segment(E_{12}, H_{12}) → f_{12}Segment(H_{12}, G_{12}) → g_{12}Segment(F_{12}, G_{12}) → h_{12}Segment(G_{12}, C_{12}) → i_{12}Segment(D_{12}, C_{12}) → j_{12}Polygon(E_{12}, H_{12}, G_{12}, C_{12}, B_{12}, A_{12}) → poly1_{11}, e_{23}, k_{12}, l_{12}, c_{23}, b_{23}, a_{23}Rotate(B_{13} + ((sliderB_1 * verzerrung), 0), winkel, B_{13}) → C_{13}Rotate(A_{13} + ((sliderB_1 * verzerrung), 0), winkel, A_{13}) → D_{13}Rotate(F_{13} + ((sliderB_1 * verzerrung), 0), winkel, F_{13}) → G_{13}Rotate(E_{13} + ((sliderB_1 * verzerrung), 0), winkel, E_{13}) → H_{13}Segment(A_{13}, B_{13}) → s_{12}Segment(B_{13}, F_{13}) → t_{12}Segment(F_{13}, E_{13}) → a_{24}Segment(E_{13}, A_{13}) → b_{24}Segment(A_{13}, D_{13}) → c_{24}Segment(D_{13}, H_{13}) → d_{12}Segment(B_{13}, C_{13}) → e_{24}Segment(E_{13}, H_{13}) → f_{13}Segment(H_{13}, G_{13}) → g_{13}Segment(F_{13}, G_{13}) → h_{13}Segment(G_{13}, C_{13}) → i_{13}Segment(D_{13}, C_{13}) → j_{13}Polygon(E_{13}, H_{13}, G_{13}, C_{13}, B_{13}, A_{13}) → poly1_{12}, e_{25}, k_{13}, l_{13}, c_{25}, b_{25}, a_{25}Rotate(B_{14} + ((sliderB_1 * verzerrung), 0), winkel, B_{14}) → C_{14}Rotate(A_{14} + ((sliderB_1 * verzerrung), 0), winkel, A_{14}) → D_{14}Rotate(F_{14} + ((sliderB_1 * verzerrung), 0), winkel, F_{14}) → G_{14}Rotate(E_{14} + ((sliderB_1 * verzerrung), 0), winkel, E_{14}) → H_{14}Segment(A_{14}, B_{14}) → s_{13}Segment(B_{14}, F_{14}) → t_{13}Segment(F_{14}, E_{14}) → a_{26}Segment(E_{14}, A_{14}) → b_{26}Segment(A_{14}, D_{14}) → c_{26}Segment(D_{14}, H_{14}) → d_{13}Segment(B_{14}, C_{14}) → e_{26}Segment(E_{14}, H_{14}) → f_{14}Segment(H_{14}, G_{14}) → g_{14}Segment(F_{14}, G_{14}) → h_{14}Segment(G_{14}, C_{14}) → i_{14}Segment(D_{14}, C_{14}) → j_{14}Polygon(E_{14}, H_{14}, G_{14}, C_{14}, B_{14}, A_{14}) → poly1_{13}, e_{27}, k_{14}, l_{14}, c_{27}, b_{27}, a_{27}Rotate(B_{15} + ((sliderB_1 * verzerrung), 0), winkel, B_{15}) → C_{15}Rotate(A_{15} + ((sliderB_1 * verzerrung), 0), winkel, A_{15}) → D_{15}Rotate(F_{15} + ((sliderB_1 * verzerrung), 0), winkel, F_{15}) → G_{15}Rotate(E_{15} + ((sliderB_1 * verzerrung), 0), winkel, E_{15}) → H_{15}Segment(A_{15}, B_{15}) → s_{14}Segment(B_{15}, F_{15}) → t_{14}Segment(F_{15}, E_{15}) → a_{28}Segment(E_{15}, A_{15}) → b_{28}Segment(A_{15}, D_{15}) → c_{28}Segment(D_{15}, H_{15}) → d_{14}Segment(B_{15}, C_{15}) → e_{28}Segment(E_{15}, H_{15}) → f_{15}Segment(H_{15}, G_{15}) → g_{15}Segment(F_{15}, G_{15}) → h_{15}Segment(G_{15}, C_{15}) → i_{15}Segment(D_{15}, C_{15}) → j_{15}Polygon(E_{15}, H_{15}, G_{15}, C_{15}, B_{15}, A_{15}) → poly1_{14}, e_{29}, k_{15}, l_{15}, c_{29}, b_{29}, a_{29}If(bsp ≟ 1, CountIf[x ≟ 0, Bsp1], If[bsp ≟ 2, CountIf[x ≟ 0, Bsp2], If[bsp ≟ 3, CountIf[x ≟ 0, Bsp3], If[bsp ≟ 4, CountIf[x ≟ 0, Bsp4], If[bsp ≟ 5, CountIf[x ≟ 0, Bsp5], If[bsp ≟ 6, CountIf[x ≟ 0, Bsp6], If[bsp ≟ 7, CountIf[x ≟ 0, Bsp7], If[bsp ≟ 8, CountIf[x ≟ 0, Bsp8]]]]]]]]) → everyTextfield(aInput) → InputBox1Midpoint(A, B) → MMidpoint(B, C) → NMidpoint(A, E) → ORotate(B_{16} + ((sliderB_1 * verzerrung), 0), winkel, B_{16}) → C_{16}Rotate(F_{16} + ((sliderB_1 * verzerrung), 0), winkel, F_{16}) → G_{16}Rotate(E_{16} + ((sliderB_1 * verzerrung), 0), winkel, E_{16}) → H_{16}Segment(A_{16}, B_{16}) → s_{15}Segment(B_{16}, F_{16}) → t_{15}Segment(F_{16}, E_{16}) → a_{31}Segment(E_{16}, A_{16}) → b_{31}Segment(B_{16}, C_{16}) → e_{31}Segment(E_{16}, H_{16}) → f_{16}Segment(H_{16}, G_{16}) → g_{16}Segment(F_{16}, G_{16}) → h_{16}Segment(G_{16}, C_{16}) → i_{17}Polygon(E_{16}, H_{16}, G_{16}, C_{16}, B_{16}, A_{16}) → poly1_{15}, e_{30}, k_{17}, l_{17}, c_{30}, b_{30}, a_{30}Rotate(A_{16} + ((sliderB_1 * verzerrung), 0), winkel, A_{16}) → PSegment(A_{16}, P) → m_1Segment(P, C_{16}) → n_1Segment(P, H_{16}) → p_1Polygon(A, B, C, G, H, E) → poly2, q_1, r_1, m_2, n_2, p_2, q_2
AI 绘图提示语参考
绘制一个长方体,并用单位立方体填充它。首先,创建长方体的六个面,然后使用旋转和平移操作将这些面复制并排列成一个网格。接着,计算并显示在不同单位立方体大小下能容纳多少个单位立方体,以及这些单位立方体的总体积。
以上提示语为根据原始绘图命令整理而来,仅供参考。