Algebraic Expression Matching 配對代數式
Match the following 14 algebraic expressions and 14 descriptions. Note all crosses should overlap with the circle points. Number of correct items will be displayed when you finish. Finally check "Substitute values into n" and change the value of n. What do you notice?
Reference: http://www.educationaldesigner.org/ed/volume1/issue1/article3
試配對以下有14個代數式及14句文字描述。留意所交叉點必需對齊圓點，完成後會自動顯示答對題數。最後按「n代入數值」並利用滑桿改變n的值。你留意到甚麼？
參考：http://www.educationaldesigner.org/ed/volume1/issue1/article3
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