绝对值方程求解器(含反馈)
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①本范例演示绝对值方程的求解过程,通过动态生成线性绝对值方程并给出反馈;②涉及核心数学概念:绝对值方程、解法、反馈机制;③构造要点:使用Random, Sequence, Union, RandomElement, Textfield, FractionText等GeoGebra命令和对象;④适合高中数学教学,用于理解和掌握绝对值方程的解法技巧。
GeoGebra 命令及参数
Random(-40, 40) → ans_1Sequence(i, i, -20, -1, 1) → aleftSequence(i, i, 1, 20, 1) → arightUnion(aleft, aright) → alistSequence(i, i, -20, 20, 1) → blistRandomElement(alist) → aRandomElement(blist) → bSequence(i, i, -10, -1, 1) → kleftSequence(i, i, 1, 10, 1) → krightUnion(kleft, kright) → klistRandomElement(klist) → kRandom(-50, 50) → dTextfield(g) → InputBox1Textfield(h) → InputBox2FractionText(g) → text3FractionText(h) → text4FractionText(oneposs) → text5FractionText(otherposs) → text6