## Eye of a Pineapple

I was tweeting with @mr_stadel about possible projects for our geometry kids. My eyes settled on the pineapple that was on our kitchen counter, then I saw each pineapple eye as a pretty hexagon, and this assignment came from that.

We spent one class period walking around our rather small K-8 campus to take pictures. The students used their cell phones as cameras, and our superintendent had enough digital cameras to lend to those who didn't have one.

The kids continued to take more pictures outside of school. I explained what I wanted in the finished product:
• Ten original photos, all taken by the student.
• Each photo is marked up in Geometer's Sketchpad (GSP) to feature anything they've learned in geometry.
• Each photo has a short written description.

The work featured below are from kids who happened to have their flash drives on them today, and they made them available to me to put this small collection together. (There were two neat pictures not featured here: one student did trig ratios; another did proportional lengths from shadows.)

• Trackbacks are closed for this post.

• May 29, 2012 11:44 PM Peter Price wrote:
I thought when I saw the pineapple that you were going to study the Golden Ratio/Mean and Fibonacci!

Neat activity with simple rules and nice outcomes. I thought your students came up with some really cool examples of everyday geometry, with impressive use of correct terminology.

Practical question: do you have to get special permission for students to use their cell phones in class? And what about photos of students appearing in resulting products? I am curious about how schools tackle privacy in such activities.
1. May 30, 2012 12:20 AM fawnnguyen wrote:
My 6th graders did Fibonacci earlier this year. All around the upper walls of my room are their collages of golden rectangles! Our students are allowed to carry cell phones as long as they don't use them during the day, so it's mainly for use before and after school. My policy: I hear it and it's mine (until end of day). If it happens again, then a parent needs to come and get it from the principal. Regarding photos, at the start of each school year, parents sign a paper to allow or not allow school to post pictures and/or first names of their students. In addition to this blog, I have a website and Facebook page to post homework and resources for parents and students. Same rules apply there too. Thank you, as always, Peter for dropping in and leaving your kind comment!
• May 31, 2012 8:37 AM Matt Vaudrey wrote:
Wow. Those are spectacular. I was with Peter and I thought you were going Golden Mean/Fibonacci. To that end, Vi Hart has some wicked YouTube videos (that would go great for the end of the year).

Seriously, though. Your students are not only looking for Geometric relationships in weird places, but their academic language is solid and their Sketchpad abilities are commendable. Nice work this year.
1. May 31, 2012 9:41 AM fawnnguyen wrote:
Thanks so much, Matt. This group of kids rocks my day and every day this year. I hope they learn from me as much as I learn from them. We love watching Vi Hart videos!
• May 31, 2012 11:23 AM Karim wrote:
What a great use of GSP, and the students did some very nice work. Can we push the basketball hoop student to demonstrate where the line of symmetry is, exactly? (I'm thinking create a segment between the pole bases, find the midpoint and draw a perpendicular line. Other methods?)
1. May 31, 2012 8:03 PM fawnnguyen wrote:

Good point about the exact line of symmetry! I'll be sure to ask him, and he's quite a brilliant kid, so I'm confident he won't have to think twice about it. (He was the only one who drew the correct Roman mosaic when I was the describer!) Funny, when he submitted his work and saw me looking at this particular picture, he added, "Mrs. Nguyen, I know you [on the right] and Karie are not mirror images of each other, the symmetry is only for the basketball hoops!"

Another way that I'm thinking of to find the line of symmetry is to construct two congruent circles whose centers are on the poles; where the circles intersect would yield the line of symmetry.

Thank you so much, Karim!

• June 5, 2012 3:57 PM Marguerite Donaldson wrote:
Cool, indeed!
1. June 5, 2012 8:16 PM fawnnguyen wrote:
Thanks, Marguerite!
• June 26, 2012 1:24 AM Hillby wrote:
Those look awesome! I need to know more though if I hope to get these kind of results. How did you introduce the project? Did you have to remind them what concepts have been covered? How long did they have to do this.
1. June 26, 2012 6:24 AM fawnnguyen wrote:
Thank you, Hillby! I did two sample pictures marked up in GSP to show them what I'd expected. I purposely made them "boring" and told the kids that and asked them I wanted more: be creative, original, variety.

For inspiration, I mentioned the different things they could look for. I gave them a week, I think, but most of it was outside of class work.

1. June 27, 2012 6:25 AM Hillby wrote:
Excellent. I hope I get to teach Geometry in the near future to use this.
1. June 28, 2012 5:40 AM fawnnguyen wrote:
I hope you do too. I think my geometry kids will have 2 periods of math next year, so I'm really excited.
• August 31, 2012 11:53 PM Peter Price wrote:
Hey Fawn, I posted this on a Facebook page where a lot of student teachers keep posting questions like "Who knows a really fun lesson on angles for Year 7?". I thought they should check out an expert and see how it's really done.

Hope your summer was good - winter officially ended this morning in Australia!

1. September 1, 2012 10:37 AM fawnnguyen wrote:
"Expert," haha, you're funny, Peter. Of course I don't forget that you're in Australia, but I certainly forgot about the seasons! Well, that must mean summer just ended here. Luckily where I am the temperature is pretty much goreous all year long. It's crazy as I love to garden and I seriously sometimes forget what month it is because the flowers are always blooming! Okay, I'll stop rubbing it in.

Summer was too hectic with me planning for workshops, so I'll try to make a note of that next year. But I'm excited for school to start too! Don't work too hard, Peter. Thank you!

• July 13, 2013 1:58 AM cheap microsoft points wrote:
Hi, Microsoft brings amazing console platform – Xbox Live. Electronicfirst offers Xbox Live Gold Membership Subscription, Microsoft Points, PSN Cards and world of warcraft gaming cards. you can buy with minimum price..