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A2-G8-12-18.0 l Permutations and Combinatio...

A2-G8-12-18.0 l Permutations and Combinati...

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(50%) (2 Votes)
Cabrillo HS student shows through permutation and combination, the number of ways, seven students can be seated in one row. Questions this video answers How do I permutate? How do I combine? How do I ...
Cabrillo HS student shows through permutation and combination, the
number of ways, seven students can be seated in one row. Questions
this video answers How do I permutate? How do I combine? How do I
multiply? How do I add?
Comments (2 of 2)
Rated: 0
Posted: 10-11-12
  

The student did a good job explaining the seats available to the people sitting. It would be nice if he explained further why he multiplied all the numbers together instead of some other method. I don't know if it would be too much information for one video, but I feel it would have added clarity if he explained the difference between permutations and combinations. At some points, his work was not neat and it wasn't impossible, just difficult to follow. 

Rated: 0
Posted: 25-10-12
  

I really like how this student explained how the 7! came about by saying that the number of available seats will be one less every time someone sits down. This is a helpful explanation. It would be nice if the student made sure to write clearly and in a straight line--the work can sometimes be hard to follow if it is tilted and messy.

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