Celebrate Fibonacci Day with Playful Math Carnival 176

Fibonacci Spiral

Fibonacci Day is November 23rd (11/23 in the American date style), and this year it falls on a Saturday.

But that’s no excuse not to celebrate!

We can do math on the weekend, you know. Or we can just play in advance of the day itself. In fact, we could take a whole Fibonacci Week and not run out of interesting math to play with.

Sonya Post has our back with lots of great ideas:

One Way to Play: Fib Poetry

Long-time readers know I like to get students thinking creatively about math, and I’ve written before about the value of math poetry.

So when Sonya included the Fib in her carnival post, I couldn’t help myself…

Fib:
A strange
Way to count,
Adding syllables
Until the words breed like rabbits.

For the rules of Fib poetry, and lots of other mathy fun, don’t miss this carnival!

Go to the Fibonacci Carnival post –>

And Here’s My Monthly Bleg

The Playful Math Blog Carnival wants you!

The carnival is a joint effort. We depend on our volunteer hosts to collect blog posts and write the carnival each month.

Classroom teachers, homeschoolers, college professors, unschoolers, or anyone who likes to play around with math — if you would like to take a turn hosting the carnival, please speak up!

Email Denise to Volunteer

 
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Image at the top of the post copyright © Romain (CC BY-SA 4.0) via Wikimedia Commons.

Charlotte Mason Math: The Trouble with Manipulatives

“Mother Playing with Child” painting by Mary Cassatt, public domain

Two passages in Charlotte Mason’s writing about math are in my opinion widely misunderstood. The first relates to the proper use of manipulatives.

Mason believed strongly in the importance of physical objects and oral work (mental math) in early math education. In her priorities, the use of written calculation fell in distant third place.

“A bag of beans, counters, or buttons should be used in all the early arithmetic lessons, and the child should be able to work with these freely, and even to add, subtract, multiply, and divide mentally, without the aid of buttons or beans, before he is set to ‘do sums’ on his slate.”

 — Charlotte Mason, Home Education

Continue reading Charlotte Mason Math: The Trouble with Manipulatives

Charlotte Mason Math: Finding Time for Big Ideas

“Woman and Child in the Grass” painting by Renoir

“Teachers have seldom time to give the inspiring ideas, what Coleridge calls, the ‘Captain’ ideas, which should quicken imagination. How living would Geometry become in the light of the discoveries of Euclid as he made them!”

 — Charlotte Mason, Towards a Philosophy of Education

The Captain ideas are the great Truths of a subject, the things that make our minds wake up and pay attention, that energize our thoughts and make us yearn for more.

In math, living ideas are the big principles that tie together many branches of the subject. Things like:

Proportion — where two quantities are connected so they scale up or scale down in tandem. For instance, if we double the number of cars in the driveway, that automatically doubles the number of tires.

Transformation — how we can change things while keeping important attributes the same. Like, if we shrink a square, its area will change, but the angles stay the same.

Continue reading Charlotte Mason Math: Finding Time for Big Ideas

Charlotte Mason Math: How Shall We Teach?

Woman withchildren painting by Dorothy Kate Richmond, public domain

Even in Mason’s day, testing drove much of educational policy, but we must not allow ourselves to fall into the trap of teaching for a test. Just as we do not study history in order to win a trivia contest, so we do not study math merely to produce answers on an exam.

“Arithmetic, Mathematics, are exceedingly easy to examine upon and so long as education is regulated by examinations so long shall we have teaching, directed not to awaken a sense of awe in contemplating a self-existing science, but rather to secure exactness and ingenuity in the treatment of problems.”

 — Charlotte Mason, Towards a Philosophy of Education

Remember Mason’s twin goals of rightness and reason. Even if you use a math book that focuses on memorizing rules and cranking out answers, you and your child can look for the ideas behind the rules: “Why does this work? How can we know for sure?”

Not just because the book says so, but because you search out and discover the innate sense of it. That is the essence of mathematics.

Continue reading Charlotte Mason Math: How Shall We Teach?

Charlotte Mason Math: Our Educational Tools

"Woman and Children" painting by Elizabeth Boott Duveneck, public domain

“Therefore, we are limited to three educational instruments––the atmosphere of environment, the discipline of habit, and the presentation of living ideas. The P.N.E.U.* Motto is: Education is an atmosphere, a discipline, and a life.”

— Charlotte Mason, Principle 5

This principle is the key to a Charlotte Mason education. Most of her books consist of drawing out the meaning and implications of this motto.

When we think about applying Mason’s educational principles to math, we must focus on providing the right atmosphere, developing appropriate habits, and presenting living ideas.

What is the mathematical atmosphere of our home or classroom? Is math a natural and welcome part of life? Or does it exist only in schoolbooks and in some nebulous “future” for which our children must prepare?

What about the people in our children’s lives? Do we adults enjoy and use math, or do we dread and avoid it? Is our mathematical worldview positive, eager to learn and grow, or negative, seeing math as a chore to endure?

Continue reading Charlotte Mason Math: Our Educational Tools

Podcast: The Beauty of Math in the Charlotte Mason Paradigm

painting by Dennis Miller Bunker, public domain

I have a new podcast interview, and I think you’ll enjoy it!

Check out Cindy Rollins’s The New Mason Jar (Season 7, Episode 93) on your favorite podcast app, or listen on the website:

Go to the podcast ❱

Here’s a couple of excerpts…

Continue reading Podcast: The Beauty of Math in the Charlotte Mason Paradigm

Don’t Miss Playful Math Carnival 175 via The Beauty of Play

photo of math art painting

Della Parker hosted the Playful Math Carnival with a delicious spread of math delicacies. Check out all the mathy inspiration, games, and hands-on activity ideas:

The blog carnival is like a free online extravaganza of mathematical play, a virtual map to articles by teachers and bloggers all around the world.

I love how there’s always something new to learn. 💖

[By the way, we still need carnival hosts for 2025. If you have a blog or website and would like to volunteer for a month, read the details at the carnival’s home page.]

Go Visit Playful Math Carnival 175

 
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Image at the top of the post copyright © Della Parker / The Beauty of Play blog.

Charlotte Mason Math: Practice Your Principles

La Fable, painting by Berthe Morisot

In our search for a Charlotte Mason math education, we must take into consideration Mason’s approach to all learning, not just the things she said about math. We must be guided by the core principles of her philosophy, even in math

“We hold that the child’s mind is no mere sac to hold ideas; but is rather, if the figure may be allowed, a spiritual organism, with an appetite for all knowledge. This is its proper diet, with which it is prepared to deal; and which it can digest and assimilate as the body does foodstuffs.”

 — Charlotte Mason, Principle 9

For instance, we must offer our students living ideas (not mere facts) in math, just as we do in literature and history.

Masons “20 Principles” outline the essentials of her educational philosophy. If we truly apply these principles to math, it can radically transform how we teach the subject.

Let’s examine a few of her principles in more detail…

Continue reading Charlotte Mason Math: Practice Your Principles

Charlotte Mason Math: Reason and Proof

“Woman with Child and Two Children,” Léon Augustin Lhermitte, public domain

The two ideas that Mason considered important in math — rightness and reason — are connected. It is our reasoning that convinces us an answer is right or wrong. How do we know we got a sum correct? We can take the numbers apart and add them another way, to see if we get the same answer. Or we can subtract one of the numbers from the sum and see if we get the other number. Or … well, how would you prove it?

More than anything else, Mason wanted her students to discover in math a sense of immutable truth, a truth that stands on its own, apart from anything we say or do, a truth we can explore and reason about but can never change.

This sense of rightness, of solid, unalterable truth, inspires a feeling of wonder and awe — she calls it “Sursum corda,” a call to worship — that delights our minds. It’s that “Aha!” feeling we get when something we’ve been struggling with suddenly fits together and makes sense.

From the very beginning, children should be doing this sort of informal proof, explaining how they figured things out. Don’t wait until high school geometry to let your children wrestle with ideas.

Continue reading Charlotte Mason Math: Reason and Proof

Introduction to Charlotte Mason Math

Woman with children, painting by Michael Ancher

“The Principality of Mathematics is a mountainous land, but the air is very fine and health-giving. People who seek their work or play in this principality find themselves braced by effort and satisfied with truth.”

— Charlotte Mason, Ourselves

Charlotte Mason (1842-1923) was a British school reformer at the turn of the twentieth century, a contemporary of William James and John Dewey. She advocated strongly for poor children, arguing they were equally capable of learning a wide and liberal curriculum as were the children of privilege.

Mason believed that all children from the time they are born share a natural curiosity and hunger for learning, and the adult’s role is to spread a “wide and generous feast” of inspiring ideas.

She was also a homeschooling pioneer, and the homeschooling revival of the late twentieth century rediscovered and popularized her books. Many found her principles a refreshing balance to the dominant educational paradigm of pragmatism.

Continue reading Introduction to Charlotte Mason Math