Algebraic Expression Matching
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
參考：http://www.educationaldesigner.org/ed/volume1/issue1/article3
Mr Downes Maths
https://www.rdmath.com/