Monthly Archives: October 2012

29 – (sub day) – common core workshop

I left plans for my sub to continue having my geometry kids work on postulates and theorems involving parallel lines cut by a transversal. My algebra kids got more review with proportions and percent change. My 6th graders got a quiz on adding and subtracting integers. Can’t wait to see the results tomorrow. I was […]

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28 – semicircles problem and block game

At least once a week, I have my students work on a group PS. Today my geometry class started on this problem (can’t remember where I got it): In the figure below, ABCD is a square. The four semicircles are congruent and each is tangent to two of its neighbors. Each side of the square contains the diameter […]

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27 – always, sometimes, never

I wrote about this lesson last year here when I did it with the 6th graders. Today I’m using another set for my 8th grade algebra kids. I like the dialogue that the kids have when they’re deciding where to place the equation — Common Core Math Practice #3 comes to mind: construct viable arguments and critique the reasoning […]

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26 – taco cart

In geometry we worked on Dan’s 3-Act Taco Cart — great activity!

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25 – (sub day) – using PUNCHLINE Algebra

I hate writing lesson plans more than sin. A few years ago I woke up feeling completely nauseated with a pounding headache as if the Budweiser Clydesdales were doing a commercial on my head. No, I didn’t drink the night before, nor was I kinda pregnant. But I went to work anyway, only to be driven home […]

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24 – hexaflexagons and peg jumps

This week we have parent conferences from 1 to 4 PM Monday-Thurday, then it’s all day on Friday. After seeing Dan’s and Justin’s 180-Day blogs, I knew I wanted to do hexaflexagon too with my geometry kids. I showed them Vi’s video, gave them the pattern and instructions from here. They had to figure out how to flex the shape on […]

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23 – Jen ratio and zero game

My algebra 8th graders LOVED the Jen Ratio lesson from Mathalicious!! I appreciated having the discussion with them about the significance of a zero in the numerator or denominator of the jen ratio. Lesson guide: It seems like good has all the power in the jen ratio. I asked students to keep a tally of the positive […]

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22 – maze game

The kids loved this game! I love it because I’m hearing things like: Oh… whoa… how did my number get so big?! Mrs. Nguyen, I think something is wrong with my calculator. I only have 20 on my calculator, but he keeps moving the marker away from the FINISH! I have two thousand something… How do […]

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21 – foxy fives and patterns in SA and volume

I really like the Foxy Fives lesson with my algebra kids so I’ll write a fuller post on my blog. It’s a nice challenge for 8th graders to apply the order of operations to a set of numbers. I was about to yell at Jonathon for doodling instead of working on the problem, but he said, “Mrs. […]

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20 – estimations, Ricky the sheep, missing area

My 6th graders had our first day with Estimation180.com. I’m waiting for the algebra kids to get tired of the Block Game, but still no such thing! They’re only getting better at the game — they’re blocking each other and showing work for each problem. In the second hour of algebra, we worked on a group […]

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