I'm Bon Crowder and the photos above are both of me - in 1989 and today. I'm a Generation X mom of Generation Z kids.

I began peer tutoring in high school in 1984. MathFour.com is the 2015 version of me helping peers be comfortable in math.

If you're a Gen-X parent, you're in the right place!

Category Archives: Geometry

Thanksgiving Math Craft: Geometric Pilgrim

Are you ready for your kids to be home for 5 days straight? Try this simple and cheap craft to keep them busy and support holiday math learning.Are you ready for your kids to be home for 5 days straight over Thanksgiving? Try this simple math craft that’s easy and cheap.

And it’s even better because there’s math involved. (You’ll totally feel like the good parent!)



Use the template shapes to cut out the geometric pieces from construction paper. I’ve suggested black, white, yellow, brown and pink for the cutouts, but your kids can choose what makes them happy.

Follow the design on the download to glue the pieces together, or to another piece of construction paper. Draw in the face bits.

Now, GO!

Use the questions to start a conversation about shapes. And share pictures of the artwork in the Facebook group Empowering Parents to Tackle Math.


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2 Responses to Thanksgiving Math Craft: Concentric Circles Cornucopia

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4 Responses to Degrees in a Circle – Why 360?

  1. You can share that idea with your students because it is geometrically pretty, and you can choose to like any historical explanation, but keep in mind that the Summarians used sexgesimal notation well before the Babylonians (from whom they obtained it).
    More importantly, the Chaldeans routinely made and preserved examples of solar and lunar eclipses dating as early as 652 BC. They also calculated the recurrence of these events in periods, synodic months, with a span of about 29 1/4 days. By the first century BC they had conceived the zodiac recognizing major star patterns that moved in approximately monthly cycles across the heavens. Hence a period of 12 synoptic months.
    The base sixty system was coincident with the emergence of the 360 day year, but your suggestion would have more likely led to a zodiac like method of 6 periods, not twelve.

  2. The Babylonians knew the length of the year to be 365.25 days so anyone who claims that days-in-a-year had anything to do with it is a moron. They were quite competent at mathematics.

    Far more likely is the idea that 360 is a really nice number, a highly composite number.

    For people who worked with fractions instead of decimals, and who needed to subdivide a circle into many different sizes of piece (24) with integer sizes, 360 is the best choice.

    • I’m not sure if they should be called morons…

      But since you are the Curmudgeon, we’ll run with it. 😉

      Thanks for stopping by!

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One Response to How to Make a Paper Box – Free Download!

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Calming generation X in math since 1985.

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