During the math fair, we were encouraged to
go around in groups of two or three to visit each project. In a group with two others, I was particularly impressed by three presentations. For
the first one, the group made two sets of the game board with numbered sea
shells for two people to use as aids to solve their problem. In addition, they
provided an extra white board for the third person in our group to write on. I
think it was quite thoughtful of them to be so prepared and they also gave us
each a little present after we successfully solved their math problem. The
second group’s model of their problem was not entirely workable so they
directed us to pointing our fingers on a drawing on their display. What they
lacked in physical manipulatives they made up in their oral presentation. One
of the little girls explained the conditions of the problem and guided us through
solving it with a high level of clarity and confidence. They had figured out
that we were training to be math teachers because we were over-thinking the
problem! As we exited, I spied another project that caught my attention so I
went back by myself to talk to this group. It was a problem on inverting a
triangle made out of multiple blocks. The girl led me to solve several similar
problems using less number of blocks before tackling their challenge problem. I
think that scaffolding really helped to build my confidence as the number of
blocks increased. Then without me mentioning (for a previous group, we asked
the presenters, “What will happen if you started with a larger number?”), the
girl told us that we can use the same method to obtain a solution for a
triangle with n blocks. She also pointed out how the problem is related to the
Fibonacci sequence which I had not thought of either.
Overall, I saw that many of the parents
came to support their children’s work. I am also encouraged by the level of
effort and professionalism displayed during this math fair.
No comments:
Post a Comment