Monthly Archives: February 2013

101 – exploding dots

I first learned of this wonderful set of lessons from James Tanton called “Exploding Dots” at the Math Teachers’ Circle (MTC) training in Palo Alto last summer. Since then, we have presented the lesson at our own MTC in Thousand Oaks. My 6th graders love this lesson! We are breaking it into chunks. Right now, we’re working with […]

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100 – making snowflakes

We’ll never have snow days here in southern California, so we made paper snowflakes. We first watched Vi Hart make them.

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99 – Valentine’s dance

Our students get to have a dance during school every Quarter, from 1:30 to end of school day, 2:50. We are not allowed to charge the students for this dance because it’s during school hours, so the Student Council does a lot of fundraising. It costs around $300 to hire a DJ. Kids are not […]

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98 – hand constructions

We did 8 constructions today in geometry. These kids have done a lot of GSP, but we haven’t done any more constructions by hand since quarter 1. It was good to do a bunch of similar ones. We ended with dividing a segment into congruent parts. I got pizza for the 11 kids who got […]

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97 – Bingo

We finished our section on multiplying monomials early today, so we played “Rational Numbers: Algebra Focus” bingo. I bought 5 different sets of these some years ago; I think it was $24 per set.  

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96 – stacking cups

My algebra kids finished up Stacking Cups from Dan Meyer. It took 3 full periods. I wrote about it here.

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95 – desert crossing

I really like this problem. Julia’s group got the correct answer by the next class period, and other groups were honing in on it. [Repost from Last Math Lessons, June 14, 2012] I’ve seen different versions of this problem; the first time I worked on it was when it involved 3,000 bananas and 1 camel traveling 1,000 miles. I […]

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94 – GSP

I’m always thankful that our junior high students have 2 periods of math. And I think most of them do too. (Last year our Superintendent did a survey asking the kids about this change, and the majority of them said it was a positive thing to receive an additional period of math.) The extra period […]

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