Monthly Archives: September 2011

A Negative Minus A Positive

This week the students worked on solving simple linear equations. As an example: 5x + 10 = -20, what is x? The ability to solve this problem varied wildly. Some students seemed to already be developing an intuitive feel for … Continue reading

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Introduction to modulo seven

This week I introduced the students to the finite field of seven elements via the following puzzle found at http://mathfair.com/puzzles.html: Redraw the figure so that each of the seven circles is big enough to hold a penny. The problem is … Continue reading

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Sept. 22 – BRAINS!

This week Mr. Macha’s class moved on to brains, which just happens to be one of my favorite things to teach. The lesson for the day focused on the idea that different parts of the brain are responsible for different … Continue reading

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I’m a Scientist (Sept. 15)

I had a lot of fun with my “I’m a Scientist” lesson today. We started out with a discussion of the different things scientists do. I had them talk amongst their lab tables, but it took them a while to … Continue reading

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Problem Based Lesson, Mythbusters style

We’re beginning science fair projects next week, so I wanted to finish my problem based lesson early in the semester.  I also wanted the lesson to be something that would help prepare them and get them in the mindset for … Continue reading

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Just Like College Students

This week we continued our where does a mathematician work project.  It was decided that they would require one more week than anticipated partially due to the fact that half the class still needed to finish their Checkpoints.  Ms. Sharma … Continue reading

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Bubble-gum & Burmese

Thursday at Central Middle, I helped with an activity to get the students thinking about testable questions and hypothesis formulation. Each table received a piece of chewing gum for each student (luckily only one student in all three classes had … Continue reading

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