Review of A New Frontier: Utilizing Charter Schooling to Strengthen Rural Education

Review of A New Frontier: Utilizing Charter Schooling to Strengthen Rural Education

A New Frontier: Utilizing Charter Schooling to Strengthen Rural Education

Andrew Smarick
Bellwether Education Partners, J.A. and Kathryn Albertson Foundation, Rural Opportunities Consortium of Idaho
March 13, 2014

Bellwether Education Partners published A New Frontier: Utilizing Charter Schooling to Strengthen Rural Education in 2014. According to the publication, nine of the nation’s 10 most rurally populated states have no charter schools (in 8 of the 9, they are not permitted); a major purpose of the document is to argue for expanding charter schools into these states. While it is presented in a fashion similar to scholarly research, serious omissions and distortions make New Frontier little more than a political lobbying document targeting rural regions (even the most urbanized states have rural regions). Especially problematic are the inadequate support or explanation for New Frontier’s premises and its presentation of superficial and misleading use of research, particularly rural education research. In the end, it is little more than an advocacy document with premises that predetermine its recommendations: how to establish more charter schools in rural regions. Missing research and slanted representations render the document useless as a source of objective information. New Frontier is propaganda—neither a thoughtful inquiry nor an honest report.

Links for celebrating PI-Day 3.14

Links
Pi poster from unihedron.com
Ask Dr. Math: About Pi
Pi Through the Ages
Wikipedia Pi
Video Pi
Pot Pourri Pi
If all you need is the first million digits …
  What Value Do You Get?

Pi, ArcTangent, and the Fibonacci Numbers
Computing the Nth digit
Are the Digits of Pi Really Random?
Buffon’s Needle
The Joy of Pi
Virtual Buffon’s Needles
Buffon’s Needle Problem
Happy Pi Day to You
Pi Day Greeting Cards
Where is the first occurrance of xxx in Pi?
The ‘Pi is Rational’ Page
Top ln(e^10) reasons why e is better than Pi
Indiana House of Representatives Declare
   Pi equals …

Mnemonic Odes to Pi
A Piece of Pi (violin music)

Links for celebration ofr PI-3.14

Links
Pi poster from unihedron.com
Ask Dr. Math: About Pi
Pi Through the Ages
Wikipedia Pi
Video Pi
Pot Pourri Pi
If all you need is the first million digits …
  What Value Do You Get?

Pi, ArcTangent, and the Fibonacci Numbers
Computing the Nth digit
Are the Digits of Pi Really Random?
Buffon’s Needle
The Joy of Pi
Virtual Buffon’s Needles
Buffon’s Needle Problem
Happy Pi Day to You
Pi Day Greeting Cards
Where is the first occurrance of xxx in Pi?
The ‘Pi is Rational’ Page
Top ln(e^10) reasons why e is better than Pi
Indiana House of Representatives Declare
   Pi equals …

Mnemonic Odes to Pi
A Piece of Pi (violin music)

Happy Birthday PI-3.14

Cutting π

Materials
circular object
string
scissors
tape

To Do and Notice
Carefully wrap string around the circumference of your circular object. Cut the string when it is exactly the same length as the circumference. Now take your “string circumference” and stretch it across the diameter of your circular object. Cut as many “string diameters” from your “string circumference” as you can. How many diameters could you cut? Compare your data with that of others. What do you notice?

What’s Going On?
This is a hands-on way to divide a circle’s circumference by its diameter. No matter what circle you use, you’ll be able to cut 3 complete diameters and have a small bit of string left over. Estimate what fraction of the diameter this small piece could be (about 1/7). You have “cut pi,” about 3 and 1/7 pieces of string, by determining how many diameters can be cut from the circumference. Tape the 3 + pieces of string onto paper and explain their significance.


Wearing π
 

Materials
cloth tape measures
calculators
hats with sizes indicated inside them

To Do and Notice
Most hat sizes range between 6 and 8. Brainstorm ideas for how such sizes could be generated. Then use measuring tape to measure people’s heads. (As you do this, think of where a hat sits on a head). Use calculators to manipulate measurements. Now compare your results with the sizes written inside the hats. Do your numbers look like they could be hat sizes? (Hint: Try using different units of measurement.)

What’s Going On?
Hat sizes must be related to the circumference of the head. The circumference of an adult’s head usually ranges between 21 and 25 inches. The head’s circumference divided by pi gives us the hat size.

Download this activity as a PDF.


Searching π

Materials
Internet access

To Do and Notice
Pick a number sequence that’s special to you—perhaps your birth date.

Go to the Pi-Search Page and type your sequence in the search box at the top of the page. This web site will search the first 200 million digits of pi in a fraction of a second. (See “How it works” on the Pi-Search Page to find out how this is accomplished.) If it finds your sequence, it will tell you at what position in pi your sequence begins and will display your sequence along with surrounding digits.

No result? Try another sequence. The shorter the sequence, the better the odds of finding it.

What’s Going On?
Pi is an irrational number, which means that its digits never end and that it doesn’t contain repeating sequences of any length. If Pi-Search didn’t find your sequence of numbers, that’s probably because the sequence occurs somewhere past the first 200 million digits. Note the qualification “probably”: Mathematicians can’t say with absolute certainty that pi contains every possible finite number sequence—but they strongly suspect that this is the case.

As of 2011, pi has been calculated to 10 trillion decimal places. When mathematicians study any sample of this huge number, they find that each digit, 0–9, occurs as often as any other, and that the occurrence of any digit seems unrelated to the preceding digit. This makes pi appear to be statistically random. If this statistical randomness is unending, then pi must contain all finite sequences of digits, including the birth dates of everyone ever born and yet to be born. It would also contain every winning lottery number—too bad we don’t know how to identify them.


Tossing π

Materials
large sheet of drawing paper or cardboard
meterstick
pen
toothpicks (30 or more)
calculator

To Do and Notice
Draw a series of parallel lines on the paper or cardboard, as many as will fit, making sure that the distance between each line is exactly equal to the length of your toothpicks. Now, one by one, randomly toss toothpicks onto the lined paper. Keep tossing until you’re out of toothpicks—or tired of tossing.

It’s time to count. First, remove any toothpicks that missed the paper or poke out beyond the paper’s edge. Then count up the total number of remaining toothpicks. Also count the number of toothpicks that cross one of your lines.

Now use this formula to calculate an approximation of pi:
Pi = 2 × (total number of toothpicks) / (number of line-crossing toothpicks)

What’s Going On?
This surprising method of calculating pi, known as Buffon’s Needles, was first discovered in the late eighteenth century by French naturalist Count Buffon. Buffon was inspired by a then-popular game of chance that involved tossing a coin onto a tiled floor and betting on whether it would land entirely within one of the tiles.

The proof of why this works involves a bit of meaty math and makes a delightful diversion for those so inclined. (See links at bottom of page.) Increasing the number of tosses improves the approximation, but only to a point. This experimental approach to geometric probability is an example of a Monte Carlo method, in which random sampling of a system yields an approximate solution.


Seeing π

Materials
can of three tennis balls
cloth tape measure

To Do and Notice
Which do you think is greater, the height or the circumference of the can? Measure to find out.

What’s Going On?
If you were fooled (and we expect that most people are), blame pi.

You can see that the height of the can is approximately 3 tennis-ball diameters, or h = 3d. But the circumference is pi times the tennis-ball diameter, or c = πd. Pi—3.14—is a little greater than 3, so the circumference of the container is slightly greater than the height

Happy birthday to PI-3.14…..

Happy 3.14159265358979323846264 Day! That’s right, Pi Day is coming on 3/14, and the annual celebration offers a great opportunity for students to explore Pi! (It’s also Albert Einstein’s birthday. There are plenty of wonderful facts in this online Einstein biography.) Of course, there are plenty of great teaching resources online to help your class celebrate Pi Day, and we here at Edutopia thought we’d help.

Here are a few of our favorites from around the Web, starting first with the video, “Learn about Pi with Max and Morty,” which was produced by Apperson Prep. It’s a great resource to get younger students excited about Pi, radius, and circumference. Happy Pi Day!

  • Without the Exploratorium, we might never have had an official Pi Day celebration. In 1988 Exploratorium physicist Larry Shaw started the tradition, and it was finally recognized by Congress in 2009. The Exploratorium highlights some great hands-on activities, and there is also a great list of Pi-related links.
  • Happy Pi Day from TeachPi.org: TeachPi hosts a trove of Pi Day resources, featuring fun classroom activities, Pi Day-inspired music, and other fun learning ideas. There’s plenty here to keep students engaged, and learning, on March 14. Check out the activities section for a bunch of great learning ideas.
  • Pi Day Teaching Ideas from Scholastic: Scholastic produced these great lesson plans for three different grade levels — preK-1, 2-3, and 4-6. There’s also interesting information about the history of Pi, as well as a link to a Web application that allows students to explore Pi through music.
  • Pi Day Resources from Math Goodies: Math Goodies features some great, free math lessons that incorporate Pi. Check out their circle lessons, as well as links to other online resources and list of questions for students to research the history of Pi.
  • What Is Pi, and How Did It Originate?: Scientific American dug deep into the history of Pi in this article, offering an insightful look at the origins of the mathematical constant.
  • TeachersFirst’s Pi Day Resources: TeacherFirst offers this great roundup of Pi-themed lessons and resources from around the Web focused primarily on high school. Included in the collection are some general math resources, like Simpsons Math, and they all come from a variety of great sources.
  • Celebrate Pi Day with the National Council of Teachers of Mathematics: There’s plenty of great resources here from NCTM. Along with fun activities, there’s also an Illuminations lesson plans section with some great standards-based lesson plans for educators.