learning

Freebie: Medieval Math Cards and Synesthesia

Do numbers have personality and gender to you? Fueds, family trees, romances…sibling squabbles? Or are they just numbers?

This question came up in my Challenge A class, and out of six kids and a few adults, only one kid and one mom didn’t do this. Since I’ve done this for as long as I can remember…involuntarily with both notes/music notation and math/numbers, I sort of assumed everyone did it to some extent (except for Jim because he’s one of those weird spreadsheet people). Obviously, 0 is the patriarch and 1 is his firstborn son who’s been such a disappointment to him. 2 is the matriarch… 7 is the perfect child who drives his siblings crazy because he really shouldn’t be…etc etc etc.

Turns out that’s an actual thing called Ordinal-Linguistic Personification, which is a form of synesthesia. A large percentage of kids do it, but they usually outgrow it. Only 1% of the adult population has Ordinal-Linguistic Personification, so I guess Jim’s not the weird one after all. There are other types of synesthesia too! Some of them I’ve never even heard of:


Grapheme-color synesthesia – associating letters or numbers with specific colors.

Ordinal-linguistic personification (OLP) – attributing personalities or genders to numbers, letters, or days of the week.

Chromesthesia – hearing sounds and involuntarily seeing colors.

Lexical-gustatory synesthesia – associating words with specific tastes.

Auditory–Tactile Synesthesia – Hearing a sound causes a feeling somewhere on your body.

So now I’m super curious about who else is a closet synesthete. 👀


But back to math, this whole number personification thing has made math discussions in class and at home so much more interesting. I was listening to the math map podcast and Dr. Gilpin recommended making your own number cards for quick arithmetic games…it’s hard sometimes to remember what numbers kings and queens are and if we decided aces were high or low. Plus, it would be nice if the cards went up to 15 like we do with skip counting.

Soooo, thanks to the power of the internet and a little late-night insomnia, here are some personified number cards for all your little creative math geniuses (or right-brained ADHD-prone kids). If you want four suites like regular playing cards, print two sets. (make sure you select “fit to page” otherwise your printer will chop off the color). You can make blue cards negative numbers and red cards positive numbers…you can add the red and minus the blues…or multiply and divide. The sky is the limit! (I included a whole list of quick, fast medieval-themed math games that will tempt even the most dysgraphic sensitive kid into doing math…perhaps even liking it)
Enjoy.

(and if you’re looking for other screen-free homeschooling help like Challenge A survival Latin or Cartography, you can find them here.)

Math Notation Flashcards

We’re on winter break, “enduring” the prettiest, gentlest snowstorm, and enjoying everything being canceled. Back last Summer when it was 100 degrees with 100% humidity I started (what I thought) was going to be the simple task of making math notation flashcards for myself and my kids. I got about halfway through when the school year officially started and we all feel like we’ve been tipped off a cliff or tossed off a high dive. Since then it feels like it’s been a thousand years with a few battles with the Balrog, but finally, I came face to face with enough time to finish those soul-sucking math notation flashcards. Definitely a labor of love. Ten out of ten do not recommend. Trying to figure out how to make logarithms and formulas on Canva is definitely not my idea of a good time. The only thing that kept me going was that I couldn’t use the normal ones. The ones CC sells are double double-sided, i.e. they put answers and questions on both sides, so both sides of the card criss-cross and contain both a question and an answer to the other side. It’s brilliant really. Nobody wants to carry around an enormous stack of flashcards and this cuts the stack in half. They’re great flashcards, well done…high quality…fit perfectly in the little flashcard boxes at Walmart/Target. You can purchase them here.

My eyeballs literally can’t handle them though. No matter how many times I tell myself this x has nothing to do with the “geometric mean”, it’s like my brain takes a picture and it’s stuck in there permanently the wrong way.

So for those who are also visual learners…have ADHD…or dysgraphia, here is a PDF of all the flashcards with just one notation and answer(s) on each card. I made them humorous and satirical with a grumpy cat and an over-enthusiastic stick figure. I also added some Latin explanations (couldn’t help myself)

Please, for the love of all the things that got neglected in my house to make these (the mud tracked in, wood shavings everywhere, cats hiding behind water heaters), use them if you need them. Hopefully, they do someone else some good too.

Now I’ll return to working on writing, spelling, and Latin curriculum, where letters mean their actual letters and not points of an angle.

It’s February, and it’s ok to feel like Frodo on the side of Mt. Doom, right? Right. (Also, can you tell what Snowday books/movies we’ve been consuming?) ahem.

If you’re looking for other neuro-helpful stuff:
Here’s a fun, electronic-free, comic-book style Latin workbook that goes along with Henle and Challenge A.
Here are some colorable Latin Flashcards that use mnemonics and puns to help them stick.
Here’s a simplified Anatomy workbook with body systems and guided research that is more accessible for dysgraphia/dyslexia.