Tag Archives: STEM

Sneaky Math

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sneaky mathWant a side of math with that story time? From simple to semi-sophisticated, here are some ways I’ve worked math into my library programs!

COUNTING SUPPLIES

There are multiple steps in my story time projects, and some of those steps involve selecting certain amounts of art supplies. So we’ll count together. For example, if the kids need 2 pipe cleaners for their project, I’ll hold out a bunch of pipe cleaners and count aloud as each kids selects them, “One…two! Great!”

NUMBERED SUPPLY CONTAINERS

During projects, I’ll often put  a line of supplies on the windowsill, and kids walk down the line and select certain amounts of supplies from each container. I used to use post it notes to mark the number needed on each container….

post it note numbersBut then I found these little babies!

holder with numberThese are 8″ table card holders. I purchased mine from an online restaurant supply company (The Web Restaurant Store). Don’t they look snazzy?

card holdersDIAGRAMS

Sometimes, I’ll have a project that requires a diagram to demonstrates how much of something is needed. For example, this rainbow cloud project needed to be covered in cotton balls, so I drew a diagram showing how many balls needed to be attached, and how many cotton balls you’d need in total. Numbers, beautiful numbers.

sneaky math

I’ve also been known to sneak math into story time projects, like this lemonade stand that involves counting, sorting, and sequential thinking.

Now who’s up for something a little more…elaborate?

In 2012, my library hosted a large-scale Robin Hood event. I knew we just had to do something on taxes. But how were we going to design something that involved taxes, math, Medieval history, but was also simple enough for kids of various ages to grasp quickly? The answer came from my brilliant event assistant Katie. We would design a tax wheel game based on Hi Ho Cherry-O.  We called it “Your Tax Dollars at Work.”

tax wheelHi Ho Cherry-O is a classic early math game involving counting and numbers. The game is driven by a spinner that dictates whether you add or remove cherries from your basket during game play. But what if the spinner for our version pointed to various Medieval taxes, the game pieces were coins? We could even throw some Robin Hood characters on the wheel. Perfect.

We knew needed to go big and durable at such a large, crowded event. So I ordered a 36″ blank roulette wheel from Spinning Designs Incorporated. The company was very tickled by the novel use of the wheel. Perhaps that’s why they gave me a fantastic (and much appreciated) deal on a wheel that had “minor surface imperfections” (which I honestly could never find).

Then Katie and I researched the different types of taxes from Robin Hood’s day. There were a lot (honestly, who taxes you for churning your butter?). We also had to find a way to gain coins back during the game.

Ultimately, we came up with the following “Lose” and “Gain” categories.

Lose Coin

  • Travel tax
  • Churn your butter tax
  • Bake your bread tax
  • Pay your lord
  • Grind your grain tax
  • Sheriff steals
  • Prince John takes all
  • Land tax

Gain (or at least not lose) Coin

  • Harvest time
  • May Day
  • Good day at market
  • Robin Hood gives you coins

As you can see, there were more ways to lose your money than gain it. We intentionally designed the game that way. There were going to be so many people at the event (3,500 actually) we wanted the game play to average 3 minutes so lots of kids could have multiple turns. If you’re interested, here are the complete game instructions.

group of kidsIn addition to the wheel, there were game boards designed to look like Medieval money bags. You placed 5 coins in your “bag” at the start of the game, then added or removed coins as the wheel dictated. We used metal replicas of Medieval coins. Because we’re nerds like that.

game boardsWhen all your coins were gone, the game was over! As a “consolation” prize, kids got a chocolate foil-wrapped coin. Kids with food allergies or dietary restrictions got to take home one of the metal replica coins.

The “Your Tax Dollars at Work” wheel and game boards were drawn by Kemi Lin, an amazing Princeton University student artist. She did it all. By hand. With packs of Sharpies. After the event, the game was donated to the Somerset County library system. Long may it live!

The Chemistry of Magic

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chemistry of magicMove over Merlin, Gandalf, Harry, and Miss Price! It’s time for some science magic! That’s me having the time of my life igniting a hydrogen balloon soaked in aqueous barium chloride. Best. Time. Ever.

Last month, Cotsen collaborated with the Princeton Chemistry Outreach Program to create The Chemistry of Magic, a program that unveiled the science behind seemingly magical chemical reactions. The lecture and demonstrations were the brainchildren of Dr. Kathryn Wagner, who is standing to the right of the GIANT GREEN FIREBALL in the image above.

Some of my favorite demonstrations included “Elephant Toothpaste” (a hugely gloppy reaction created by mixing hydrogen peroxide, soap and potassium iodide solution), the “Ring of Fire” (igniting isopropyl rubbing alcohol within a water cooler bottle to produce a slow, licking blue flame), and the “Methane Mamba” (which basically involved holding a column of methane infused soap bubbles in our hand, placing a match in the middle, and enjoying a raging pillar of flames).

We also demonstrated a “Dry Ice Rainbow,” invisible ink, color change experiments, a Tesla coil, a blind spot optical illusion, homemade glow stick solution, liquid nitrogen fog, and a “Genie in a Bottle” (a reaction of hydrogen peroxide and manganese dioxide powder in a 2-liter soda bottle…the result being 8 feet of writhing steam).

Could you host such a program? Sure! There were a couple of high school science teachers in attendance. You might have one near your institution or library who would be willing to work some science magic. You can also talk with your local science center, university, or college to see if they might be interested a collaboration.

But don’t, however, try this at home. We were in a large chemistry lecture hall with proper ventilation, safety equipment, and under Dr. Wagner’s watchful eye. Don’t try this at home folks! Really.

So the next time a character in a book summons a fireball (Incendio!), we hope that readers will pause and reflect on the real fireball they saw at this program, and consider the awesome science that made it possible.

Everyone’s an Engineer

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everyones an engineerGet ready to create, build, and innovate. Today, everyone’s an engineer and the sky’s the limit!

We read Rosie Revere, Engineer written by Andrea Beaty, illustrated by David Roberts (Harry N. Abrams, 2013). At night, young Rosie Revere designs gadgets, gizmos, and fabulous machines…and then hides them. She’s an engineer, but due to an unfortunate incident with her Uncle Fred (a zookeeper who mistakenly laughs at a cheddar cheese spray hat designed to keep pythons away), she’s keeping her light under a bushel.

However, when Great-Great-Aunt Rose comes to visit and expresses her life-long wish to fly, Rosie puts aside her fears and builds her a flying machine. The machine flies…and then promptly crashes. Rosie gives up. But wait! Great-Great-Aunt Rose has something to say. Failures are part of engineering, but the true failure is if you give up and stop trying. Don’t forget to check the last page for a sweet illustration of Rosie’s ultimate success!

This story time cost zero dollars because I used materials that were already in my art cabinet and storage closet. You could do something similar by sending out a call for recyclables at your library, school, workplace, or neighborhood (more about that here). Another option is to announce the story time theme in advance and invite families to bring recyclables and surplus art supplies from home to contribute.

Here’s a list of the materials I offered:

  • White matte boxes in various shapes and sizes
  • Pastry boxes (you can see the exact ones I used on this project)
  • Tissue boxes, assorted sizes and colors
  • Oatmeal containers
  • Toilet paper tubes
  • Paper towel tubes
  • Wrapping paper tubes
  • Corrugated cardboard bases (leftover from this project)
  • Bulk CD cases (the kind that look like big plastic tubs)
  • Paper plates
  • Plastic cups
  • Paper cups
  • Different lengths of PVC pipe
  • Some cone water cups
  • Pieces of tagboard
  • Assorted beverage caps
  • Film canisters
  • A variety of tea tins
  • Black plastic top hats
  • A selection of sparkle stems
  • A selection of pipe cleaners
  • A selection of craft ties
  • A selection of color masking tape
  • Aluminum foil
  • Construction paper
  • Poster board strips (regular and metallic)
  • Metallic paper
  • Clothespins
  • A variety of craft sticks
  • A selection of twisteez wire
  • A selection of large plastic buttons
  • A few spools of metallic tie cord
  • Plastic drinking straws
  • A few spools of britelace
  • Some marabou boas
  • A selection of dot stickers and star stickers
  • The Bling Bin
  • Scissors, tape, hole punch, and glue stick for construction
  • Markers for decorating
  • A box cutter
  • Hot glue

One building supply I didn’t list above are these…the round plastic guides at the ends of large rolls of paper. Pop them out and you have some excellent tires:

tube tiresTo prep for story time, I piled everything onto side tables, plugged in the hot glue gun, and invited everyone to make a machine. No additional prompting was needed!

Here are a few fabulous creations, beginning with…”The Dollycopter”

dollycopterWhen you pull the craft sticks on top of this computer, they jiggle the strings of buttons inside the monitor.

cone computerAn “alien” computer with with furry frame and space scene!

furry computerThere were plenty of robots, widgets, rockets, and flying mechanisms…

table robot robot 1robot 2 Remember the enthusiastic young fellow who started this post off? He designed a “Police Train” and believe it or not, the thing actually rolled when you pulled it!

train walksGuess we’ll be seeing him at MIT in a few years…