Knitting is Math: How Getting Girls to Knit Could Launch STEM Careers

This one is kind of a long read, but I think it’s really interesting as a knitter and a mom of a girl who I hope can stay engaged in math and science as she gets older.

The post, “Girls Knit Their Way to a Math Career” looks at how knitting and other fiber arts can be used to encourage girls to engage in mathematical thinking and problem solving that just might lead the to careers in science and math in the future.

I hope more schools and programs will get this idea, that knitting is so much more than handcraft. It would be valuable even if it just helped kids to focus, lower their stress levels and gain confidence as they learn new skills and solve problems, but it’s really more than that. Knitting and crochet can not only be used to explore and explain higher mathematical concepts, the act of designing a knitting project — and sometimes even knitting from a pattern — requires problem solving and math skills.

Sometimes the mathematical connections are obvious, as when I spent a hectic morning with the Pythagorean Theorem while designing a set-in sweater sleeve. Other times it’s not as obvious, or we don’t think about the fact that we’re doing math when we knit a gauge swatch or adjust a pattern. The more experience and comfort kids have with these concepts in a non-classroom context can only benefit them, even if it doesn’t lead to more women in STEM careers.

Knitting might also be a way to reach girls with STEM projects when those girls aren’t interested in robots and computer gaming, which are classic points of entry that might appeal more to boys.

I know I’m going to keep encouraging my daughter in both her fiber arts and her mathematical studies, and I can’t wait to see where that all goes for her.

Have you ever taught kids to knit or crochet? Do you talk about it being math? Or in your own craft do you think about it being math? I’d love to hear your thoughts.

[Illustration by James Lewis for Bright.]

It’s one thing to follow a knitting pattern and get the fit that the designer wanted for that particular project. But it’s quite another thing to decide how you want your sweater to fit and making a project work for you.

Designer Kim McBrien Evans aims to help knitters understand why sweater patterns don’t always work for them the way they expect and what to do about it in her book The Knitter’s Sweater Fitting Bible.

She describes the book as containing “everything I’ve learned about sweaters, bodies, and the art of fit.” It covers how to plan for a good fit through things like taking measurements and choosing the correct size to knit, understanding ease, reading schematics and fixing fit issues.

Sweater style templates give knitters a place to start knitting better sweaters with made to measure patterns that work with any body, any yarn and any gauge. The book is designed to give knitters confidence to go their own way whether they’re modifying existing patterns, using one of the templates or designing their own custom sweater.

McBrien Evans argues that the best way to make a sweater that will fit well and stand up to lots of wearing is to work from the top down flat in pieces that are seamed when the knitting is done (the exception being circular yoke sweaters, which are worked in the round from the top down). She offers advice for making seaming easier like using selvedges and short rows.

She goes into a lot of detail on how and where to measure yourself and how to understand schematics in knitting patterns to help you choose the correct size for you and know where to adjust. The fixing fit chapter covers how to fit a sweater to your body from the shoulders down, with tips for things like balancing uneven shoulder height, accommodating a larger bust, using different shaping on the front and back of a sweater for better fit, fixing neckline depth and fixing sleeve and body lengths.

The book includes photos and drawings of people of different sizes and with physical differences such as a smaller limb or having a mastectomy on one side, which is nice and helps you see how these concepts work on different bodies.

The sweater templates offer options like a straight body, A-line and waist shaping body; set in sleeve caps and armholes, straight raglans and modular compound raglans, drop shoulders and circular yoke shaping; crew, scoop and V-neck options; a variety of sleeve templates, neckline finishes, and button hole options for cardigans.

It’s easy for all this to feel overwhelming if you’re trying to read the book cover to cover, but it’s good to know that all of those options are there if you need them. There are also nine design profile sweaters that show you how all the pieces go together that you can knit through to help you understand some of the concepts.

A fit kit in the back walks you through the math so you’ll feel comfortable with things like determining your rate of shaping, adding darts, shaping diagonals and calculating the lengths of curved edges, among other things.

The good news is you’re not going to need all of these tools for every project. The better news is that now you know these are things you can do to make your sweaters fit better, and you’ll have McBrien Evans as your able guide every step of the way.

While this might not be a book you want to spring on a new sweater knitter, it’s a guide that everyone who enjoys knitting garments should have on hand to reference ways to make sweaters they want to knit — from written patterns or designing for themselves — that much better.

About the book: 192 pages, hardcover, 9 patterns. Published 2026 by David & Charles. Suggested retail price $29.99.

Comments

Aubrey says
March 10, 2017 at 11:49 am
Girls and boys too!
piecefuldays says
March 10, 2017 at 12:21 pm
When I was in high school, the girls were discouraged (sometimes severely) to avoid math and science and to go toward English, and typing, and so forth. As I’ve aged and gotten into quilting I realized I certainly would have had easier lessons if I had been taught in a mode (piecing fabric angles for geometry, compositions of threads and battings for some science concepts). Thank you for a well written essay!

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