Monday, November 10, 2014

Video Of Alex At His NNV Math Club - Exploring His Simple Mistake

(filmed with my iPhone)

Alex at his last Sunday NNV Math Club practice.

Although Alex's mathematical method and rationale were correct...
he had made a simple miscalculation in the rounding of a number
which had caused him to be off in his answer by 1.

Many students had also made simple mistakes with this problem...
and only realized where they had gone wrong when Alex explained his methodology
 (you can hear some of them speaking near the end of the video).

This is the original problem:
(I had to write it down on a piece of paper and take a photo of it with my iPhone).



At Alex's Sunday math club...
not only does his chief instructor use the participant's 
correct answers to have them explain their process to the rest of the club...
she will also have a student who had miscalculated his answer
go up to the board to explain his process, so the class...
and most importantly, the student, may find where he had gone wrong.

This is a learning process where the class attempts to guide the student at the board
to the correct methods or logic in order to solve the problem while he is at the board...
or vice a versa.

Although Alex's methodology was correct...
it was because of an elementary oversight that he had been off by one.

In Alex's case...
in part of his calculations...
he simply had not rounded a number up.

It was a simple mistake...
but as he was only one digit off...
the instructor knew where he had gone wrong...
and so, wanted Alex to find where the mistake was.

Even with this simple mistake...
Alex had done much better on this practice ARML test
than he has ever done before.

Alex has learned a lot since joining the NNV Math Club.

He enjoys every two hour Sunday session...
not only because he learns a lot...
but because he likes the other children there as well.

--------

Today...
 in Alex's UNR Linear Algebra class...
he had taken his midterm exam.

When he joined me in the student lounge today after class...
he had a big smile.

He thinks he had done well in his exam.

He has been studying diligently...
so, I also think he had done well.

We will have to see his results in a couple of days.

But then again...
Alex always feels he has done well on all of his tests  :)
(and it is not necessarily the case...by our standards).




No comments:

Post a Comment

Please feel free to comment on this article.

Related Posts Plugin for WordPress, Blogger...