特殊幂值
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所属专题
Rechnen mit Potenzen
本范例通过多个选择题和开放题,演示了特殊幂值的计算方法。涉及的核心数学概念包括幂的运算规则。使用了 GeoGebra 的多种命令,如 Textfield, Sequence, Join 等。适合初中7-8年级学生学习幂的运算规则。
GeoGebra 命令及参数
Textfield(input1) → InputBox1Textfield(input2) → InputBox2Textfield(input3) → InputBox3Textfield(input4) → InputBox4SpeechBubbleRight(A, 11, 1.8) → Speech1Sequence(B + ((dfx * i), 0), i, 0, size, 1) → Layer1PointsSequence(D + ((dfx * i), 0), i, 0, size, 1) → Layer3PointsSequence(C + ((dfx * i), 0), i, 0, size, 1) → Layer2PointsJoin({{Segment[C, Layer2Points(Length[Layer2Points])], Segment[B, Layer1Points(Length[Layer1Points])]}, Sequence[Segment[Layer1Points(i), Layer2Points(i)], i, 1, Length[Layer1Points], 1]}) → Kanten1Translate(Layer1Points, (Length[Vector[B, Layer1Points(2)] / 2], -0.2)) → BogenUntenStartEndListTranslate(Layer1Points, (Length[Vector[B, Layer1Points(2)]], -0.2 - Length[Vector[B, Layer1Points(2)] / 2])) → BogenUntenMidListJoin({{Segment[C, Layer2Points(Length[Layer2Points])], Segment[D, Layer3Points(Length[Layer3Points])]}, Sequence[Segment[Layer3Points(i), Layer2Points(i)], i, 1, Length[Layer1Points], 1]}) → Kanten2Textfield(input5) → InputBox5Textfield(inputText) → Eingabefeld1SpeechBubbleRight(A, 8.4, 1.8) → Speech2Translate(Layer3Points, (Length[Vector[B, Layer1Points(2)] / 2], 0.2)) → BogenObenStartEndListTranslate(Layer3Points, (Length[Vector[B, Layer1Points(2)]], 0.2 + Length[Vector[B, Layer1Points(2)] / 2])) → BogenObenMidListText(Div2Text, BogenObenMidList(4) + (0, 0.5), false, true, 0, 0) → Text12Text(Div2Text, BogenObenMidList(3) + (0, 0.5), false, true, 0, 0) → Text13Text(Div2Text, BogenObenMidList(1) + (0, 0.5), false, true, 0, 0) → Text15Text(Div2Text, BogenObenMidList(2) + (0, 0.5), false, true, 0, 0) → Text14Textfield(input6) → InputBox6Sequence(Text[Mult2Text, BogenUntenMidList(i) + (0, -0.25), false, true, 0, 0], i, 1, 4, 1) → Mult2BeschSpeechBubbleRight(A, 8.4, 1.8) → Vieleck1If(step < 8, 8 - step - 1, 0) → inputsolSequence(CircumcircleArc[BogenUntenStartEndList(i), BogenUntenMidList(i) + (-0.3, 0), BogenUntenStartEndList(i + 1) + (-0.3, 0)], i, 1, 4, 1) → Mult2BogenSequence(BogenUntenStartEndList(i) + (-0.3, 0), i, 2, 5, 1) → Mult2PfeileCircumcircleArc(BogenObenStartEndList(5), BogenObenMidList(4), BogenObenStartEndList(4) + (0.3, 0)) → BogenOben1CircumcircleArc(BogenObenStartEndList(4), BogenObenMidList(3), BogenObenStartEndList(3) + (0.3, 0)) → BogenOben2CircumcircleArc(BogenObenStartEndList(3), BogenObenMidList(2), BogenObenStartEndList(2) + (0.3, 0)) → BogenOben3CircumcircleArc(BogenObenStartEndList(2), BogenObenMidList(1), BogenObenStartEndList(1) + (0.3, 0)) → BogenOben4
AI 绘图提示语参考
在坐标平面上准备若干输入框用于选择题:在底部生成四条等间距的点列,分别以三条相邻点之间的弦连成折线边界,并在两层点列之间画出连续的相邻连接线;同时在顶部生成对应的另一层弧形点列,并用把相邻点按层两两连接形成上部折线边界。再把底部与顶部各两端之间做四段圆弧,圆弧的中点用点列的中间位置控制。最后在圆弧对应位置叠加4个小符号/数字提示,并在图中加入若干右侧气泡用于说明“每一段对应的幂/规则”。
以上提示语为根据原始绘图命令整理而来,仅供参考。