二年级模块3第13课:位值圆盘问题集
几何画板及绘图内容加载中,请稍等……
该范例演示了使用位值圆盘(Place Value Disks)进行二年级数学问题集练习,通过可视化圆盘表示数字的组成与加法运算。核心数学概念包括位值(个位、十位、百位)、自然数的加法以及十进制计数系统。作图要点:利用GeoGebra的Polygon命令绘制圆盘形状,并通过Make100、Make10、Make1等自定义命令或对象(如text51、text52、text53)来标记不同位值的圆盘,同时使用Sum命令计算总和;对象包括多个多边形(poly1、poly2、poly3)和文本标签,用于展示分组与累加过程。适合小学二年级学生进行位值理解和加法练习,也可作为教师课堂演示工具。
GeoGebra 命令及参数
Polygon(C_2, D_2, E_2, F_2) → poly1, c_5, d_5, e_4, f_4Polygon(F_2, E_2, G_2, H_2) → poly2, f_5, e_5, g_4, h_4Polygon(H_2, G_2, I_2, J_2) → poly3, h_5, g_5, i_2, j_2Make100(A) → c, text1Make100(B) → d, text2Make100(C) → e, text3Make100(D) → f, text4Make100(E) → g, text5Make100(F) → h, text6Make100(G) → k, text7Make100(H) → p, text8Make100(I) → q, text9Make100(J) → r, text10Make10(K) → s, text11Make10(L) → t, text12Make10(M) → c_1, text13Make10(N) → d_1, text14Make10(O) → e_1, text15Make10(P) → f_1, text16Make10(Q) → g_1, text17Make10(R) → h_1, text18Make10(S) → k_1, text19Make10(T) → p_1, text20Make10(U) → q_1, text21Make10(V) → r_1, text22Make10(W) → s_1, text23Make10(Z) → t_1, text24Make10(A_1) → c_2, text25Make10(B_1) → d_2, text26Make10(C_1) → e_2, text27Make10(D_1) → f_2, text28Make10(E_1) → g_2, text29Make10(F_1) → h_2, text30Make1(G_1) → k_2, text31Make1(H_1) → p_2, text32Make1(I_1) → q_2, text33Make1(J_1) → r_2, text34Make1(K_1) → s_2, text35Make1(L_1) → t_2, text36Make1(M_1) → c_3, text37Make1(N_1) → d_3, text38Make1(O_1) → e_3, text39Make1(P_1) → f_3, text40Make1(Q_1) → g_3, text41Make1(R_1) → h_3, text42Make1(S_1) → k_3, text43Make1(T_1) → p_3, text44Make1(U_1) → q_3, text45Make1(V_1) → r_3, text46Make1(W_1) → s_3, text47Make1(Z_1) → t_3, text48Make1(A_2) → c_4, text49Make1(B_2) → d_4, text50Polygon(D_2, K_2, L_2, E_2) → poly4, d_6, k_4, l_2, e_6Polygon(E_2, L_2, M_2, G_2) → poly5, e_7, l_1, m_2, g_6Polygon(G_2, M_2, N_2, I_2) → poly6, g_7, m_1, n_2, i_1Sum(Sequence[IsInRegion[Element[listOnes, i], poly6], i, 1, 20]) → valueOnes
AI 绘图提示语参考
画出三个十位盘和一个百位盘,每个盘上用不同颜色表示个位、十位和百位。首先画出三个十位盘,每个盘上用不同颜色表示个位和十位,然后画出一个百位盘,用不同颜色表示个位、十位和百位。接着,使用Make100命令为每个盘添加10个单位,使用Make1命令为每个单位添加1个单位,最后用Sum命令计算总和。
以上提示语为根据原始绘图命令整理而来,仅供参考。