Geography Education
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# Geography Education

Supporting geography educators everywhere with current digital resources.
Curated by Seth Dixon
 Scooped by Seth Dixon

## How Eratosthenes calculated the Earth's circumference

"In the mid-20th century we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, a man in Ancient Greece came up with nearly the exact same figure using just a stick and his brain."

Seth Dixon's insight:

Eratosthenes is often referred to as the "father of geography" for creating meridians and parallels on his maps to organize global information, classifying climatic zones, and as shown in the video, calculating the circumference of the Earth. Plus, he coined the terms so he gets the credit. If you have never pondered the meaning of the word "geometry," the accomplishments of Eratosthenes will certainly show that the mathematical prowess was at the heart of expanding our collective geographic knowledge (additionally, here is a retro Carl Sagan in a video clip from Cosmos that inspired this clip).

Tagsmapping, math, locationSTEM, historical.

ROCAFORT's curator insight,
How Eratosthenes calculated the Earth's circumference
 Scooped by Seth Dixon

## Eratosthenes calculation for the size of the earth around 240 BC

Seth Dixon's insight:

Eratosthenes is often referred to as the "father of geography" for creating meridians and parallels on his maps to organize global information, classifying climatic zones, and as shown in the video, calculating the circumference of the Earth. Plus, he coined the terms so he gets the credit. If you have never pondered the meaning of the word "geometry," the accomplishments of Eratosthenes will certainly show that the mathematical prowess was at the heart of expanding our collective geographic knowledge.

Tagsmapping, math, location, historical.

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 Scooped by Seth Dixon

## Giant Concrete Arrows Across America

Every so often, a hiker or a backpacker will run across something puzzling: a ginormous concrete arrow, as much as seventy feet in length, just sitting in the middle of scrub-covered America. What are these giant arrows? Jeopardy champ Ken Jennings solves the mystery.
Seth Dixon's insight:

This is fascinating...just because a technology is old and outdated in modern society doesn't mean it wasn't ingenious.  The original mathematicians who calculated angles and distances study geometry so they could navigate and 'measure the Earth.' Before GPS, these giant arrows helped pilots navigate across the United States; they are part of the genealogical strands of navigational technology.   Mathematics can be incredibly spatial as well as geospatial.

Tagsmapping, GPS, math, geospatial, location, historical.

Rich Schultz's curator insight,

Very intriguing!

 Scooped by Seth Dixon

## geteach.com

Free site dedicated to help teachers educate and engage students using Google Earth
Seth Dixon's insight:

GE Teach is a phenomenal site, designed by an AP teacher to bring geospatial technologies into the classroom in a way that is incredibly user-friendly. This site allows you to use Google Earth with clickable layers. With multiple data layers of physical and human geography variables, this interactive globe puts spatial information in powerful, yet fun, student-inspired platform.  Click here for a video tutorial.

Tags: .

Kristen McDaniel's curator insight,

Use Google Earth in the classroom with clickable layering of maps.  Great for bringing Geography into your classroom!

Geography Teachers' Association of Victoria Inc. (GTAV)'s curator insight,

GTAV Technology and cartography in Geography

GE Teach is a phenomenal site, designed to bring geospatial technologies into the classroom in a way that is incredibly user-friendly. This site allows you to use Google Earth with clickable layers. With multiple data layers of physical and human geography variables, this interactive globe puts spatial information in powerful, yet fun, student-inspired platform.

 Scooped by Seth Dixon

## Real World Math

"Real World Math: Using Google Earth in the Math Curriculum."   Back to my interdisciplinary approach to strengthening geographic education, image hearing that there is a Math teacher at your school using this, wouldn't you want to be a part of it?  Too often knowledge is taught within disciplinary silos; students need opportunities to make real world connections between the disciplines to breath life into how they are taught.  This site reminds me of http://www.googlelittrips.org/ which allows real world geography to be a part of literature/English classes.

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 Scooped by Seth Dixon

## Ptolemy's Map and Geographia

Seth Dixon's insight:

Who was Ptolemy and what were some important contributions to geography?  This student-produced video does a nice of introducing him to a modern audience.

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## Looking For Real-World Math Problems? Try Google Earth!

Aiming to get kids to understand and solve real-world math problems, one teacher developed a tool that uses Google Earth.

Anna Sasaki's curator insight,

There is a new programme which helps students truly understand the usage of math skills being taught in school. It is a game that students may play, which actually put the math skills learned in school into play. This solves the time old question of "when will I ever use this?" It is very fun and uses Google maps to manifest questions for each sections from grades 5-10. It is putting more use of the Google maps and helps others learn about geography as it is using the maps.

This shows another way to use Google maps, which uses a GIS system to track locations. The online maps presents many different opportunities of teaching others, through various methods, and geography can be present in any topic shown. Geography can help others learn through spatial recognition in the case of math, and many other ideas.

Woodstock School's curator insight,

“Pray tell us, what's your favorite number?"...
"Shiva jumped up to the board, uninvited, and wrote 10,213,223"...
"And pray, why would this number interest us?"
"It is the only number that describes itself when you read it, 'One zero, two ones, three twos, two threes'.”
― Abraham Varghese, Cutting for Stone

Matthew Connealy's curator insight,

The use of Google Earth is becoming beneficial to Thomas Petra, a middle school teacher that is trying to make learning more interesting. By using Google Earth, he is able to teach lessons in a more interactive and applicable way. An example of this would be when his students learned about distance through the Alaskan dog sledders and their travels. The students are able to learn much more than the conventional way of learning and are able to gain a better sense of the phenomena around them.

Although this was used in a mathematical setting, Google Earth is only just beginning. Geography students would greatly benefit from this usage of the app, and more teachers should learn to harness this style of teaching. Students will be able to gain a better sense of what is going on around them, and know more about the world they live in.

 Scooped by Seth Dixon

"Giant 70-foot concrete arrows that point your way across the country, left behind by a forgotten age of US mail delivery.  Long before the days of radio (and those convenient little smartphone applications), the US Postal service began a cross-country air mail service using army war surplus planes from World War I.  The federal government funded enormous concrete arrows to be built every 10 miles or so along established airmail routes they were each built alongside a 50 foot tall tower with a rotating gas-powered light. These airway beacons are said to have been visible from a distance of 10 miles high."

Seth Dixon's insight:

This is fascinating...just because a technology is old and outdated in modern society doesn't mean it wasn't ingenious.  The original mathmeticans who calcuated angles and distances study geometry so they could navigate and 'measure the Earth.' These giant arrows are but one of those links in the geneological strands of navigational technology.   Mathematics can be incredibly spatial as well as geospatial.

Giovanni Sonego's curator insight,

Adesso sembra incredibile che si usasse un sistema simile per guidare la posta aerea. Forse a quei tempi sembrava normale.

Steven Flis's curator insight,

I love articles like this one where they talk about the collide of different times. This article speaks of huge concrete arrows which were left from 1930's air mail routes. sadly most of the towers that were paired with the arrows have been dismantled but still really cool that these directional arrows from the past can still be found almost 90 years later.

Elle Reagan's curator insight,

Wow technology has come a long way in just a short amount of time! We would still be using  those stone arrows if it wasn't for the invention of the GPS.

 Scooped by Seth Dixon

Who says you can't integrate geography and real world applications into the math curriculum?  Paul Bouke has scoured the Earth searching for fractals in the natural environment and created this amazingly artistic remote sensing gallery (with KMZ files for viewing in Google Earth as well).

Seth Dixon's comment, September 9, 2012 8:40 PM
Thanks for sharing so many great link on FB and have been able to use several. I'm glad that the sharing can go in both directions.
Ann Kissinger Wurst's comment, September 9, 2012 8:44 PM
Seth - I am hardly worthy of YOUR currating! Hope to meet you in person at NCGE and get a picture of us for Facebook. :-)
Paige T's comment, September 10, 2012 11:21 AM
This is so beautiful. Fractals are an amazing phenomenon, whether you are an artist, geographer, or mathematician. I love being able to see fractals in plants or feel them as air travels through my lungs.