Advent Math via Nrich.Maths.org

These advent calendars feature a new math puzzle or game for each day of December until Christmas. Many of the activities are designed to be done in a group, but they work fine for home school families who play with math together. Enjoy!

For Primary Students

For Secondary Students


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Days of Christmas with Vi Hart

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Graph-It Game

[Photo by Scott Schram via Flickr.]

For Leon’s Christmas gift, Alex made the Graph-It game. She wrapped a pad of graph paper and wrote up the instructions:

To play Graph-It, one person designs a picture made by connecting points on a coordinate graph. He reads the points to the other player, who tries to reproduce the picture.

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Renée’s Platonic Mobile

Alexandria Jones struggled to think of a Christmas gift that a one-month-old baby could enjoy, but finally she got an idea.

She cut empty cereal boxes to make regular polygons: 6 squares, 12 regular pentagons, and 32 equilateral triangles. Using small pieces of masking tape, she carefully formed the five Platonic solids. Then she mixed flour and water into a runny paste. She tore an old newspaper into small strips and soaked them in the paste. She covered each solid with a thin layer of paper.

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Have a Mathy Christmas

A mathematical Christmas? You bet! For instance, I just noticed that Raymond Smullyan’s The Lady or the Tiger is finally back in print. My family and my math club students have enjoyed many of the puzzles in this book over the years, and I can’t think of a better stocking stuffer for the mathophile in your family.

(I do hope that means the rest of Raymond Smullyan’s puzzle books will be coming back, too!)

In the holiday gift-giving spirit, I’ve started making a list. Check out the links below for more mathematical Christmas present ideas.

Continue reading Have a Mathy Christmas

Christmas Puzzle: The Grinch Bug

grinch
[Photo by theogeo.]

Christmas afternoon is a slow time at our house. How shall we while away the hours until the turkey is done? With math, of course!

Check out this puzzle from Blinkdagger.

Continue reading Christmas Puzzle: The Grinch Bug