Guest post: Math for a budding biologist

Karen Samuel Boley is the education director for Budding Biologist, a science ed company created by parents, for parents. Check out their Kickstarter for an ecological video game.

When we think of the convergence of math and science, we think of engineers designing an airfoil or biologists replicating bacteria. At the elementary school level, we tend to picture basic quantities: How much rain fell last month? How high did we build the block tower? It can be difficult to imagine teaching mathematics along with science and going beyond simple measurement.

Mathematical concepts are actually inseparable from science. So inseparable that we use mathematical concepts without even thinking about them. Activities that connect math and science are easy to do in and around your home.

Leaf Symmetry

Symmetry is everywhere in nature. Help your child find the lines of symmetry on leaves, and then try it with animals!

By Ernst Haeckel

Natural objects can also be used to illustrate reflections, rotations, and translations – or flips, turns, and slides. How do you move objects to make patterns and design? Children can find tessellations in nature, whether they are on a pineapple, or made by flipping leaves.

Chemistry uses ratios. If we want to make a larger quantity of a compound, we have to add its ingredients in the same proportion, no matter how much we want to make. To explore ratios, children can help with cooking. If you need one cup of rice to serve two people, how many cups do you need if you want to serve four people?

Many young children are familiar with patterns. You can point to patterns in clothing and ask if your child can figure out what would come next. You can show them patterns on animal skin, scales of a snake, the placement of needles on the branch of a pine tree, veins on a leaf, and even the center of a sunflower.

Ask children where else they can find a pattern. Take them on a pattern hunt outside. Use found objects to make your own patterns!


What would continue this pattern?

Integrating math with science activities will show children the practical and artistic uses for math. Doing so addresses the common complaint, “But I’m never going to USE this for anything!” Imagine your children’s shock when they discover they have been using math all along… and never even knew it!

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Posted in Make

SAS family math event, September 26th 2013

SAS September 26, 2013

  • We will be planning a fancy tea party – for math. So we can do math with friends!
  • I have several grandparents who may be interested in a Math Circle for their grandchildren. We grandparents have good opportunities for math, because we have dedicated time with the children.
  • Can we do something mathy with Minecraft? My kids love it!
  • I am worried about my girl. How can we help little girls in mathematics?

These are some of the comments from the meeting Yelena McManaman and I led at SAS. We presented our Early Algebra ideas, talked about baby math a bit, and discussed Math Circles. We sold more book than there were people present, since participants bought gifts for friends.

Again and again, we hear that people need know-how and support for forming local, friendly math groups they can enjoy with their kids. We will be helping SAS parents and grandparents with that. How can we help people elsewhere? We need to build stronger networks!

Thanks to Dana Aberhold for organizing the meeting!

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Posted in Grow

Inspired by Calculus: Thursday Math Circle Week 1

This Math Circle report has three parts. The first part summarizes “whys” behind club activities, and gives ideas on what to do at home. The second part has samples of what the group said and done, from Yelena McManaman. The third part has links to resources.

I will keep adding our pictures to a set on Flickr. Thank you for the photos, Lynna Mattia!

The main three principles:
1 – Make math your own, to make your own math
2 – Have adventures
3 – Do it with friends
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Posted in Grow

Do your little kids draw grids?

What do you see when you look at drawings by little kids?

For example, grown-up artists noticed that many young artists draw big heads with legs. The more people talked about these shapes, the more meaning they found. By now developmental psychologists developed big theories of development around these simple observations: “Tadpole drawings appear during the pre-schematic stage…”

Grown-up mathematicians noticed that many young mathematicians draw grids. Round grids, square grids, grids within grids!

Have you kids made any grids? Please send us pictures and stories!

Wanted Grid Art

Here are some masterpieces from Michael Kelly.

MichaelKellyGrids

Michael writes:

Our youngest son Francis began drawing pattern grids and intersecting lines when he was about 3 years old. He seemed to draw in a way that resembled his early language learning. He didn’t draw discrete objects but would rather make patterns and connections across the whole space. In a similar way, in his speech he did not repeat individual or ‘favourite’ words, but he often copied the cadences of, or flow within, a sentence. 

Strapped into his baby seat in the car he once interrupted a stream of jokes and laughter between four adults which he had been silently witnessing. When he had noticed the pattern he gave his own version of a line of ‘speech’ followed by his own appreciative laughter. His timing was great. Everyone stopped… none of us had considered how a 15 month old child might be making sense of the vocal expressions and social conventions of our adult friendships!

Franny’s drawing showed awareness of relationships between local shapes and overall design, and the negative shapes were sometimes integrated too.

We already have a bit of theory on grids and kids. Grids are to individual cells as paragraphs are to words (in Michael’s example), or songs are to notes. The whole grid is bigger than the sum of its parts, and kids think in terms of the whole of the thing! But some children start by drawing individual cells next to one another, like so:

Even older kids and teens may draw individual cells when they work with new grid ideas. Here is another example from Math in Your Feet:

At other times, children make grids by having long lines cross in many places, so the cells multiply:

We have four chapters of grid games in the Moebius Noodles: Adventurous Math for the Playground Crowd book. Check them out!

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Posted in Make