More Halloween Math

by kennymatic via flickr

An Apollonian pumpkin patch and Sierpinski candy corn:

Great ideas for mathy porch decorations:

My favorite blood-thirsty online game from Murderous Maths:

And more:

Do you know of more mathy fall fun? Share your links in the comments section!


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Easy-to-Make Counting Rope

This is wonderful! I am definitely not a crafts-person, but I can’t wait to make some of these. If I can just find my daughter’s pony beads….

From Cindy at love2learn2day, who got the idea from a math conference workshop by Kim Sutton.

Krista at the LivingMathForum wrote, “We’ve used these for several years. My son even made a bunch of them a few years ago and sold them at a homeschool resource fair. We always have one in most of our board games to help younger children add up their die rolls. I find them relaxing for some reason, just moving the beads along the cord, and my son will sometimes sit and listen to me reading, etc., and just manipulate the beads.”

Playful Math Lessons

You can use these math activities to play with your counting rope:


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Math Teachers at Play #43 via Maths Insider

photo by Giulia Forsythe via flickr

Welcome! I’m Caroline Mukisa from Maths Insider and the host of the the 43rd edition of the Math Teachers at Play carnival!

I’m delighted once again to be presenting a really cool range of math related blog posts and articles. This month, you’ll get to savor math posts related to McDonalds, Dexter, war, an ancient game, an inventor and more!

Do bookmark this page so you can come back and read any of the posts you don’t get time to read right now!

Go read Math Teachers at Play Carnival Number 43 – Fast Food, Crime Drama and More!

Free Learning Guide Booklets


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More Than One Way to Solve It, Again

photo by Annie Pilon via flickr

We continue with our counting lessons — and once again, Kitten proves that she doesn’t think the same way I do. In fact, her solution is so elegant that I think she could have a future as a mathematician. After all, every aspiring novelist needs a day job, right?

If only I could get her to give up the idea that she hates math…

Permutations with Complications

How many of the possible distinct arrangements of 1-6 have 1 to the left of 2?

Competition Math for Middle School, by J. Batterson

Continue reading More Than One Way to Solve It, Again

Math Carnival Update, and an Algebra Puzzle

Oops! I misread my calendar last week. The Math Teachers at Play blog carnival will be this Friday at Maths Insider. That means you still have today and tomorrow to send in your blog post submissions using the handy submission form. See you at the carnival!

In the meantime, let me share with you this monster algebra puzzle from the Well-Trained Mind forum. Simplify:

[ \left ( {x}^{\frac {3}{2x}} \right )^{\frac{x}{9}} \times \left ( x^{\frac{9}{15}} \right )^{\frac{5}{18}}]^3

How would you explain this problem to a beginning algebra student who has just learned the exponent rules? Or to his non-mathy mom?

And Don’t Miss…

These other mathy blog carnivals:


howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.