Carnival Updates

Posted on by Denise Gaskins

John Cook has posted the Golden Carnival of Mathematics, for your browsing pleasure. The CoM desperately needs hosts, so if you’re willing to take a turn, now is the time to contact Mike Croucher and let him know!

The Mathematics and Multimedia Carnival is coming next Monday to Mathematics, Learning and Web 2.0. If you blog about techy stuff for teaching math, send in a post. Like any blog carnival, the MaMC would be delighted to come to your blog: contact Guillermo Bautista to volunteer.

Math Teachers at Play, the blog carnival about elementary & secondary school mathematics, is now accepting submissions for next week’s edition. The blog carnival server has been glitchy of late, however, so you may want to email your link directly to the host.

And if you speak the languages, you’re sure to enjoy the most recent Carnevale della Matematica or Carnaval de Matemáticas.

Finally, it’s not quite a carnival, but I’ve just discovered and started exploring MathBlogging.org’s Weekly Picks. Enjoy!

Arithmetic Village Books

Posted on by Denise Gaskins

Thanks to the generosity of author Kimberly Moore, I am giving away a complete set of the beautiful Arithmetic Village picture books. You can read the first book free online.

When you think of math do you think of a light-hearted fairy tale?

No? Then come and meet some of the delightful characters who live in Arithmetic Village.

Polly Plus collects jewels slowly and methodically, Linus Minus is carefree and loses his. Tina Times and King David Divide… well you’ll see.

The first book offers the overview of the math concepts. These are then demonstrated through the lives of each character. The books are designed to be supported by a manipulative kit [homemade: see video below] with 100 jewels, 10 golden bags, and a treasure chest…

— Kimberly Moore
Proposal: Arithmetic Village

My fantasy-loving daughter Kitten would have been thrilled with this math program when she was little, just as this 6yo girl was. But it’s not just for girls — here is a thorough review by a homeschool mom of two boys.

Visit the Arithmetic Village website to read more about the books and explore the activity pages (links under each topic in the main page menu). Or check out Kim’s YouTube videos for activity ideas.

Continue reading Arithmetic Village Books

Math Teachers at Play #39

Posted on by Denise Gaskins

Welcome to the Math Teachers At Play blog carnival — which is not just for math teachers! If you like to learn new things and play around with ideas, you are sure to find something of interest.

Several of these articles were submitted by the bloggers; others were drawn from my overflowing blog reader. Don’t try to skim everything all at once, but take the time to enjoy browsing. Savor a few posts today, and then come back for another helping tomorrow or next week.

Most of the photos below are from the 2010 MAA Found Math Gallery; click each image for more details. Quotations are from Mike Cook’s Canonical List of Math Jokes.

Let the mathematical fun begin…

Continue reading Math Teachers at Play #39

Blog Carnival Broken?

Posted on by Denise Gaskins

It’s been nearly two weeks since the blog carnival website sent me any articles for the MTaP carnival. If you tried to submit a entry for the carnival this week or last, I probably didn’t get it. Feel free to email me directly!

In the meantime, I’ve combed Google Reader and collected a nice assortment of posts for this week’s Math Teachers at Play — but there is still room for more.

Drowning Doesn’t Look Like Drowning via Mario Vittone

Posted on by Denise Gaskins

Off-topic for a math blog, but vitally important:

  • Drowning Doesn’t Look Like Drowning

    Sometimes the most common indication that someone is drowning is that they don’t look like they’re drowning. They may just look like they are treading water and looking up at the deck. One way to be sure? Ask them, “Are you alright?” If they can answer at all – they probably are. If they return a blank stare, you may have less than 30 seconds to get to them. And parents — children playing in the water make noise. When they get quiet, you get to them and find out why.

  • It Doesn’t Have to Be Summer

    If something like that seems unlikely to you, then you’d be right. Bucket drownings don’t happen often. But when they do, the parents involved never care how rare the event is for everyone else. Something very similar to the events described above happened just last month in Indiana. There was another bucket drowning reported in Illinois the month before that.

Also worth your time:

Hyperbolic Crochet Coral Reef

Posted on by Denise Gaskins

Wow! And to think, I was proud of myself for finishing a crochet afghan. Once.

For More Details

Try It Yourself

Chain several. Leave straight to work in rows, or connect into a loop. Single crochet until your patience runs out, increasing every nth stitch (add an extra sc in the same place). Experiment with different colors and patterns. This pdf will give you more ideas.

The more frequently you increase, the frillier your hyperbolic plane will be, while a less-frequent increase makes it easier for students to see the structure. Daina Taimina recommends a 12:13 ratio (increase after every 12th stitch) for classroom use.

Hat tip: 2010 MAA Found Math Gallery, Week 45, and authentic arts by jenny hoople for the pdf.

Summer Slowdown

Posted on by Denise Gaskins

It happens this way every summer: I think that when school’s out, I’ll have time to catch up on things. But school is never out, because we’re homeschoolers — and something else always comes up to make us even more busy than normal. This year, an emergency forced dh to move his engineering office from town to home. It’s great to have him close at hand, but spring cleaning has turned into a total house reorganization to make room.

Niner's baby snapping turtle sitting on her wrist
And then Niner and Kitten adopted a couple of new pets. Here’s a picture of Niner’s new snapping turtle. The old one is getting so big he eats feeder fish by the dozen, but she plans to release him back into the creek as soon as the spring floods go down. Kitten rescued two baby birds (normally the dogs take care of wind-blown fledglings), so we have to find room for yet another cage in our menagerie.

In the meantime, this month’s Math Teachers at Play carnival is coming home to my blog, so I’d better get to work on that. If you would like to share a blog post about learning, teaching, or just playing around with math, I’d love to have you send it in. Just click here and fill out the handy automatic submission form.

Update, July 2011: Niner wrote a blog post on the turtles, with photos. Kitten had one of her babies die (sad!) but the other grew up enough to be released into the woods across the creek.