Math art collections: favorites on Pinterest

Here are three things we at Natural Math like to do with other people’s mathematical collections on Pinterest. Try for yourself if you have not yet.

  1. Browse a favorite collection, relax to beautiful images and videos, and meditate.
  2. Invite your children to browse together – it’s like a trip to an art museum, but it only takes 3 minutes and there is no driving.
  3. Take favorite pieces for your own collection. Here are our collections.

Our newest blog writer Ruby gives you a tour of five lovely math collections. Enjoy!

The board Pop up 3d by SO Satori features many great examples of pop-up artwork. Some of the designs are asymmnetrical in a way that makes you wonder how they created them. It makes you want to just grab a piece of paper and start folding!



The board Countable – 1 to 10 by Maria João Lagarto features various images that would be great to show to preschoolers to help them learn to count in a natural way. Some of the images could be used to teach multiplication or square roots.

The board Balloons_Math Related by Victoria Skye is a collection of photos and videos of amazing balloon art. It could be used as a cool and interactive way to teach kids about 3D models and fractals. No matter what, the amazing sculptures will capture your attention.



The board Mathy Math by Adelaide Leigh has great examples of radial symmetry and reflection symmetry art. Some of the pins include integration and fractals, while others are great ways to learn about modeling.

The board Reggio Classroom and Activities by Beck has lots of inviting activities for modeling with kids. Some of the activities use simple supplies like cardboard boxes. They are geared mainly towards kids that are 5 to 8 years of age.

Built Faces

Posted in Grow

Multiplication heat map, reworking calculus, join our crew: Newsletter February 5, 2015

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In this newsletter:

  • “Heat map” of the hardest multiplication facts.
  • Reworking calculus for 5 year olds: January survey.
  • What is James really trying to do? James Tanton’s Common Core video and our reply.
  • Math storytelling and crafts for an autistic spectrum child.
  • We are hiring and seeking volunteers.

“Heat map” of the hardest multiplication facts

How do you know you are actually learning something? Usually, through testing. But how do you or your children feel facing a math test someone else inflicts? Many people find that scary and stressful. Yet total freedom from progress-tracking may sap motivation and make it hard to pursue big goals.

Computer games have levels and achievements that not only orient players within the game, but also add spice and motivation. Scientists also work on tracking progress in meaningful ways. Why not adopt these gamer or scientist techniques, in ways that make sense for you?

Multiplication Heat Map

For example, check out this heat map for a group of children memorizing times tables. Think of your own maps you and your child can build. Which multiplication facts take you the longest to recall or figure out? Is your map symmetric, or do you also find 7*6 slightly easier than 6*7? And what does your map say about ways you can improve your number sense and fluency?

Our online course Multiplication Explorers helps participants learn these mapping tools. Here is an example: a work-in-progress map a teen created for reviewing times tables through patterns, a.k.a. “facts I don’t need to memorize.”

The next session of the course starts February 9th. Join with your family, math circle, or class!

199 families and groups signed up for the course as of this writing. We love to read notes from participants explaining why they join, so here are a few:

  • I hope to solidify my 5th grader’s multiplication skills and introduce it to my first grader and maybe even four-year-old.
  • Always looking for engaging ways to help my son (with poor working memory) to learn about multiplication – preferable without the reliance on rote learning!
  • I will use the course and poster to help my special needs granddaughter in her struggles with math. She is a third grader.
  • I teach at the secondary level to kids (Gr. 9 and 10) with very poor numeracy skills.  I want to teach numeracy (esp. multiplication) since this has been a major ‘gap’ or roadblock to understanding curriculum.
  • My homeschooler (age 7) is discovering multiplication. He thinks math is like a fun mystery puzzle.

Reworking calculus for 5 year olds: January survey

One of our ongoing projects is making calculus radically accessible. As in “a five-year old can do it” accessible. That’s why we started an informal survey. Maria Droujkova recently presented at the Joint Math Meetings, the largest math gathering in the world. She used this opportunity to ask the conference participants these questions:

  • If you were to explain calculus to a non-mathematician friend through one idea, what would it be?
  • How about that friend’s curious five-year-old kid?
  • What is one calculus idea you’d want everyone in the world to understand?

We also took the survey to our blog and to Twitter. Here are some responses. Wouldn’t it be great if children learned that from calculus?

  • The purpose of all math is to describe relationships in nature (@jevanyn)
  • How calculus is used to determine and predict change in anything/everything (@earlsamuelson)
  • That many functions are approximately linear at small scale. The idea of local vs global (@daveinstpaul)
  • The concept of adding “more and more of less and less” (@dmarain)

You can view more responses and share your ideas on our blog.

What is James really trying to do?

James Tanton is one of our favorite mathematics educators. He recently created a neat learning manifesto full of ideas you can use to share meaning, relevance, and joy of mathematics – with the unexpected title of, “What is the Common Core and what is it really trying to do?” On her video blog Math Accent, Maria Droujkova responds with, “What is James really trying to do?

What do you think?

Math storytelling and crafts for an autistic spectrum child

The richly illustrated story Lisa McCarville shared in January is one of the most-read on our blog. Lisa’s family deals with their special needs with care and creativity. Check out detailed instructions on DIY math manipulatives, and see why storytelling makes the world of difference.

Lisa writes: “The most important reason why I do what I do is these looks of happiness from my son. He loves learning this way. He uses what he learns in his own studies of art, drawing spaceships and futuristic communities using these shapes and patterns. He can synthesize what he learns and make it meaningful to his own interests. My goal is for him to be a lifelong learner and I think that making math enjoyable, practical and engaging leads to that goal.

Want to share a math story, a short observation, or just a cute phrase your child said? Send it our way!

Join the Natural Math crew

We are growing. Can you help? Join our adventures!

Part-time paid positions

  • Book layout. Help produce beautiful books for standard printing requirements (e.g. Ingram) as well as .ePub and .moby electronic formats.
  • Community-centered marketing and sales. Focusing on helping people, sustainable growth, and meaningful engagement.
  • Leading math circles and courses. Help us meet the demand for family activities in Raleigh-Durham, NC area, and/or lead online courses for families and teachers.

Volunteer opportunities

Spend quality time with engaged people working on meaningful mathematics! You can volunteer as little as an hour per month. Our current volunteers include teens, parents, university researchers, software developers, retired professionals, social media activists, and creative writers. This is perfect for people who want more active but still casual engagement, or want to ramp up their skillset and resume.

Email maria@naturalmath.com to talk about work or volunteering.

See you online! Dr. Maria Droujkova, Yelena McManaman, and the Natural Math crew

CC BY-NC-SA

Posted in Newsletter

Fundamental Ideas of Calculus – a survey

What is one central idea of calculus you would want everyone in the world to understand?

Add your ideas in comments.

Posted in Grow

Math Storytelling: Lisa’s Story

Lisa G. McCarville is a mother, educator and learning consultant who is working to help people shift their mindsets about what learning is. Lisa is a differently abled person and an advocate for all learners. Lisa works as a writer and an acting instructor/coach using theater games in social groups for people on the autism spectrum. She has a degree in Liberal Arts, 40 years of experience in the arts, and enjoys taking online open courseware classes at many universities. Lisa teaches herself about early education and extensively researches Waldorf, Montessori, and Multiple Intelligence methods of education. She lives with her husband and two big dogs in Arizona, where she homeschools her youngest son, who is on the spectrum. A version of this post originally appeared on Lisa’s blog.


reference materials Skip counting is the main underlying pattern of the multiplication tables. If you count by twos, fives, or tens, you are skip counting. Using a manipulative helps children to see the pattern in an abstract concept like counting by sevens. Why do my son and I use manipulatives? They work for us – it’s that simple. Memorizing multiplication tables is usually done through drills, worksheets and rote memorization. It takes a lot of effort and practice for spatial learners, such as my son. Cognitive research shows that not everyone learns the same way. During my own math education experience, I often had no concrete understanding of what I was memorizing. A manipulative that can be touched allows him to see the abstract connection to what he is memorizing. Creating a visual road map of the “big picture” is crucial to his motivation. He learns where math can take his brain and what he can do with basic math facts. My son is also learning that the effort of thinking is worth the work, that the process of math can be joyful. Montessori classrooms are filled with manipulatives as a part of the curriculum. This wooden manipulative is a Waldorf method used to teach children the relationships between patterns and math. The connection the learner makes with these manipulatives forms a bridge to more complex conceptual thinking skills and hopefully a passionate enjoyment of geometry. This very easily made manipulative for skip counting that I found on Pinterest has become a favorite with many parents on some of the Facebook pages I post on. This manipulative is taken from a traditional Waldorf math lesson done with colored chalk on a board, explaining the relationship of patterns to numeracy. My husband Mike did this project in about an hour, and since I had some of the materials on hand, like the dowels and number stickers, the cost was only the $1.75 used to buy the wooden circle piece at the craft store. I found self-adhesive number stickers at the scrapbooking section but you can use a sharpie, craft paint, or even a watercolor vegetable-based paint, polished down with beeswax to seal and finish it. You can do it on paper as well. I will share ideas about cheaper methods below.

finished_manipulativeThe Manipulative being used to count by threes.

WHAT YOU NEED

  • One round wooden plaque (size it for your learner’s fine motor skills)
  • 10 wooden peg dowels with flat heads (such as axle pegs)
  • Wooden craft glue
  • A drill with a bit
  • Number stickers 0 through 9, paint, or permanent marker
  • Small balls of colored yarn
  • Ruler/Compass/Protractor
  • Pencil/Paper/Scissors
  • Husband that will completely take over the project while you have a glass of wine (Optional)

mike1 Mike’s first step was to trace the wooden base onto paper to create a template. He divided the 360 degree circle by 10, which gave him 10 36 degree segments to measure and draw from the center point on the template. He scored through the paper onto the wood, using the pattern to mark where each dowel would go. One of my favorite exercises to do with young children is to imagine how the first humans discovered and recognized a circle. Was it an animal tied to a stake in the ground that made them see the circle shape? How would an animal make a circle like this? String and stick circle making exercises can be introduce how people solved math problems with simple tools. “How did they figure it out” discussions make math fun and engaging for young learners. A wonderful book on these subjects to read aloud to learners is“String, Straight-Edge & Shadow – The Story of Geometry” by Julia E Diggins After scoring the wood, Mike checked his work. This was as hard as it looks but he got it precisely right. An educator could easily turn this into a geometrical problem solving exercise for older children. If they can make a circle, find the center, and divide it into 10 equal fractions, you can even do the patterns with colored pencils on paper circles, leaving out the wood manipulative. Younger learners can use a 36 degree angle template to trace segments onto the circle.

evenly-spaced-dowelsAfter the math puzzle is solved and the 10 points are marked it’s time for drilling the dowel holes.

Mike measured the width of wooden dowel against his drill bits, until he found one that matched. He also put a piece of tape on the drill bit to mark how deep to drill, so that he could make each hole uniform. He then practiced on a piece of scrap wood. mike5 mike4 After Mike drilled out the holes, he used a wood glue to secure the dowels. He also tapped the ends of dowels with a rubber ended hammer to make sure they were secure, and pressed on the adhesive number stickers. finished-manipulative-2 I like the multiples of three lesson as it shows a wonderful star pattern and the kids love to see how their answers form patterns with the manipulative. Make sure you loop the string around the peg dowels. skip-count_3 Be aware of how the process works and show the child: if they skip count by 3 all the way up to 3×10 = 30, they can go counterclockwise, skip count by 7 and get the same star. It’s a fun “aha!” moment for kids to discover. I think it is easier to see these patterns with skip counting by 1 and then skip counting counterclockwise by 9. Most kids know number nine has some tricks and it may help them see the pattern. I keep a times tables chart on the table so that my son can reference it and self correct if he gets confused by the numerical language or sequence of what he is doing. This is empowering, and fosters abstract thinking: using rhythmical language, visual cues and hands-on activity across the midline all work together to master the process. Retention of these math facts through visual recognition of the patterns may help students who cannot memorize their multiplication facts in traditional ways. The best part is, it makes math fun while showing patterns in a simple, inexpensive way. Waldorf educators do this circled skip counting on chalk boards too and it is very beautifully rendered. My Pinterest link from above shows examples of this. multicolord serious If you use different colored yarn for different numbers you can layer patterns and see common denominators. In these picture, the green string marks threes and the orange marks sixes. My son is very serious here, but he does like this work. knitting_loomtrampoline You can also use a knitting loom as a manipulative. My son said it was like a trampoline and bounced his hand on it! smiling

Another variation of skip counting that my son created with pattern blocks.

The most important reason why I do what I do is these looks of happiness from my son. He loves learning this way. He uses what he learns in his own studies of art, drawing spaceships and futuristic communities using these shapes and patterns. He can synthesize what he learns and make it meaningful to his own interests. My goal is for him to be a lifelong learner and I think that making math enjoyable, practical and engaging leads to that goal.

conor-drawingConor’s hexagon space station drawing.

Posted in Make