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 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!)

### Instructions

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.

### Toilet Paper Math

Do you need a last minute Valentine’s Day activity or set of cards? This Geometric Valentine is perfect – and great for all ages! Continue Reading

Check out these fun Geometric Turkeys for Thanksgiving. The free downloadable templates include discussion questions too! Continue Reading

Try this fun Geometric Bat for Halloween with your students. It’s a great way to talk shapes with every age! Continue Reading

### Thanksgiving Math Craft: Concentric Circles Cornucopia

Make this cornucopia from concentric circles. What a great math craft for Thanksgiving! Continue Reading

### 2 Responses to Thanksgiving Math Craft: Concentric Circles Cornucopia

• Bon says:

Thanks for the invite, Cindy – I did it!

### Math Necklace with Circles!

Where do you see math? In your jewelry? Take a peek – I’ll bet you have some! Continue Reading

### Project Based Learning Idea – The Zipit Monster Pouch

A fun zipper monster pencil case turns into a Project Based Learning activity! Continue Reading

### 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.

• Bon says:

Wow, Pat. Thanks for the information!

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.

• Bon says:

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!

Have you ever tried to make a paper box? It’s a challenge to design, but fun to make with this easy template. And if you teach math, you can use the discussion questions in your lesson! Continue Reading

# MathFour.com

Calming generation X in math since 1985.

Want more? Check out the Facebook Group Empowering Parents to Tackle Math . Or sign up for one of the parent support online classes!