Tag Archives: proportions

Between 2 Numbers

I created a new site, it’s called Between 2 Numbers. From the About/Contact page: The inspiration for this site came from John Allen Paulos’ book Innumeracy. I read the book back in 2008, but reading it again this past summer reignited the inspiration and turned it into fruition. In my lesson plan spreadsheet, I started a […]

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Greenies

Our black lab Mandy is 3.5 years old, weighs a ton, and her breath used to smell like death. Until we started giving her one Greenies a day. My husband orders them from Amazon, he also gets them for our neighbor’s small dog Bailey. Although both boxes weigh the same 36 ounces, Bailey gets 130 treats in the Teenie size and Mandy […]

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Rates and Proportional Reasoning

I’ve been hyper focused on “rates” and “proportional reasoning” for a project I’m working on. Not that one has to look far and wide either, unit rates and proportions are all around us. We intentionally and inadvertently compare things. (HA! I didn’t even realize what this product was until I’m cropping and re-sizing them for this […]

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Prices, Proportions, Percents

I was in Garden Grove with my son on Sunday, and he insisted that I try this smoothie place called Tastea. With Jamba Juice and Blenders and all the other juice bars around town, I was skeptical that this joint’s concoctions would be anything different. He ordered a taro milk tea and I got a Thai […]

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Sleep On It

This lesson mattress_sizes1 is the result of my spending 4 nights sleeping on a really nice bed wrapped under thousand-thread-count sheets! Part 1: The Mattresses I asked the kids to guess how the size of the little rectangles on paper compare to the real mattresses. (It’s 2% of actual.) We ignored the thickness. Then I asked them what the scale […]

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One Rod Tall

I’ve written before about reading books to my kids and following up with an activity. I read the poem one_inch_tall to my 6th graders as we’re studying ratios and proportions. One Inch Tall by Shel Silverstein If you were only one inch tall, you’d ride a worm to school. The teardrop of a crying ant would be your swimming pool. A […]

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From Listerine to Fuji Water

I was brushing my teeth. The next evening, after dropping my car off for a nail to be removed from the right rear tire, I killed time at Michaels and Trader Joe’s. I created this lesson relative_ratios from that. My 6th graders are working on ratios and proportions. I saw the three different-sized bottles of Listerine on my bathroom counter […]

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Visualizing Volume is Tricky!

This was one of those lessons that I think I gained a lot more than my 6th graders did. It was meant as a one-period activity, but I kept going off on different tangents and brought the students along for the ride. Over a month ago Andrew (@mr_stadel) tweeted me a picture that he took of a William Sonoma display of their […]

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Blaming the British Paper Size

I bought this lovely red book — and the blue one too — from the Shell Centre for Mathematical Education back in 2007 and paid a pretty penny to get it shipped from Nottingham, UK. [07/04/14: This book is now available for free download.] I noticed immediately that the book and the “Masters for Photocopying” were not of the […]

Posted in Algebra, Course 1 (6th Grade Math) | Also tagged , , , , , , , , | 1 Response

Playing with Barbies

I got most of my 20-plus Barbies from eBay, and I make good use of them.  I use the Barbies with my 6th graders when we study proportions, and with my algebra students we do the Barbie Bungee activity when we study linear equations. The students work in groups of three, one Barbie per group.  […]

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