Sign up for Exclusive Offers

Ask us about

Free shipping & Ship to Store


The Thinking Cap: A Fun Way to Make A 'Craftematics' Fascinator

Ready to dive into some CRAFTEMATICS? (Crafting+Mathematics!)

Whisk away math anxiety with this fashion-forward fascinator!

Screen Shot 2014-02-02 at 11.29.34 PM

It's time to look into cross-educational crafts that teach girls and boys about math while holding the same allure as fashion dolls and dress-up games!

This is the perfect exercise for stylish little girls and dapper young gentlemen, as they'll be able to create a top hat while picking up basic mathematic skills as well!

This craft teaches about the properties of a circle, transcribing circles using a protractor, measurement, and spacial reasoning, all while creating an adorable fascinator. It's a great way to get both girls and boys interested in math, as after all, costume and fashion designers use numbers in their work every day!


  • 1-Piece of construction paper
  • 1-Pair of safety scissors
  • 1-Glue stick or roll of tape.
  • 1-Hair clip or bobby pin
  • A Ruler
  • A pencil
  • A coffee can or any object with a round lid with a 10cm diameter OR a compass.


Screen Shot 2014-02-02 at 11.33.09 PM

STEP 1: Fold the piece of paper in half . Put the coffee can on the paper and draw around it. Alternatively, use your compass to draw a circle with a 10cm diameter.

Screen Shot 2014-02-02 at 11.34.41 PM

STEP 2: Unfold the piece of construction paper and carefully cut out your circle. This will be the brim of the hat.

Screen Shot 2014-02-02 at 11.35.12 PM

STEP 3: Mark the four quarters of your circle with a pencil. Join these points together to find the center point. Older kids can use a formula to figure this out. Younger kids can just use a ruler to deduce where the circle is 10cm across.

Screen Shot 2014-02-02 at 11.35.54 PM

STEP 4: Poke a hole in the center of your circle with your pencil. This is a really good time to talk about balance. Who can resist giving a circle like this a twirl?

Screen Shot 2014-02-02 at 11.36.38 PM

STEP 5: Measure 3cm in from the outside of the circle and, with your compass or by measuring all around and joining the points, draw a smaller circle inside of the first one. Cut it out. It should look like this:

Screen Shot 2014-02-02 at 11.41.32 PM

STEP 6: Take out your piece of construction paper and cut two rectangles. The first will be 7cm wide and the same length as the shortest edge of your paper. The second will be 7cm x 3cm.

Screen Shot 2014-02-02 at 11.42.07 PM

When you finish, you should have three pieces of paper: a 10cm diameter circle, a 7cmx3cm rectangle, and an approximately 22cmx7cm rectangle.

Screen Shot 2014-02-02 at 11.42.56 PM

STEP 7: After someone rearranges the pieces into a winky face and the laughter dies down, roll the larger rectangle into a tube and fit it inside of the circle. Using your glue stick, glue your rectangle into a slightly less than 10cm diameter tube. Circle sizes vary, but we needed about 6cm of glue on the end of our rectangle.

Screen Shot 2014-02-02 at 11.43.20 PM Screen Shot 2014-02-02 at 11.43.27 PM

STEP 8: Glue the smaller rectangle to the INSIDE of your tube.

Screen Shot 2014-02-02 at 11.44.13 PM

STEP 9: Glue the other end to the opposite inner wall of the tube.

Screen Shot 2014-02-02 at 11.44.22 PM

STEP 10: Starting from the end opposite the small rectangle, work the circle down over the tube to form your hat. Make sure the lines you marked are facing the bottom of the hat (where the rectangle is glued).

Screen Shot 2014-02-02 at 11.44.28 PM Screen Shot 2014-02-02 at 11.44.34 PM

STEP 11: Turn your fascinator over, and attach a hair clip or bobby pin to the center bar.

Screen Shot 2014-02-02 at 11.44.41 PM

STEP 12: Add personal flair, and wear!

Screen Shot 2014-02-02 at 11.44.48 PM

The Big Idea: Math isn't just about numbers and memorization. It is a way of understanding the world around us. Architects, engineers, and yes, fashion designers, use math in their careers to make sure that the things they design are produced exactly the way they intended them to look. Words like "big" and "small" mean different things to different people. By using exact measurements, we can understand exactly HOW big or HOW small. It's a good thing we have math, or we could have ended up with some kind of weird alien tube dress rather than a top hat!

Important Details:

The "Craftematics" fascinator hat design, article, and photographs are the intellectual property of Catharine Crerar-Rhodes. Scholar's Choice has the right to use the contents. The model is the daughter of the author and permission has been given to use these images, only in conjunction with this article and only in the manner intended.  At no time will Scholar's choice sell, market, or utilize the images in any other capacity without first obtaining the permission of the child's parent.


The article includes a basic hat design that can easily be created by children between the ages of 5 and up. A variation on the design using sturdier materials and fabric is available.  However, the variation may not be suitable for younger children (it requires the use of an xacto knife and a hot glue gun).

Do you have any more great craft ideas that incorporate mathematics? Let us know, below!

Posted by Catharine Crerar-Rhodes in Parent, General ← Previous Post Next Post →

Please wait...