Creating Interactive
Lessons with Google Earth
Strategy One –
Use data from the layers already in Google Earth.
Google Earth
contains a wealth of information. There are photos from Panoramio,
entries from Wikipedia, and YouTube videos. There are also specialized
layers, including information from National Geographic, The Cousteau
Society, and user-contributed data. All of this information can be
collected into a folder.

You can also load
files created by other users. Clicking the “Add Content” button will
open the Google Earth Gallery in an external browser. More content can
be found at the Google Earth Community website at
http://bbs.keyhole.com .
These files will be
added to your “Temporary Places” folder. You can drag and drop content
from there into folders that you have created.
HINT: To find
Google Earth files quickly online, go to Google Search (www.google.com)
and click on the Advanced Search link. In the File Type field select
either KMZ or KML. You can fill in other search terms as desired.
Strategy
Two – Use embeddables.
Some websites, such
as YouTube and VoiceThread, allow users to embed their content into
websites and blogs. Since a placemark is a miniature web page, and can
interpret limited HTML, you can also embed much of this content into
placemarks, too.
Look for words such
as “embed” or “share.”

Websites with
embeddable content – sample list:
These websites offer
free membership and the ability to upload content. Some of the sites
are blocked by districts because of objectionable content or bandwidth
usage. Some of the sites are supported by advertising content.
Embedding the content into other contexts such as Google Earth may
eliminate advertising. All of these have been tested and are known to
work with Google Earth placemarks.
|
Website |
URL |
Description |
|
Video
Content |
|
YouTube |
www.youtube.com |
Video
content of all types, often blocked by districts. YouTube has
its own layer in Google Earth. |
|
TeacherTube |
www.teachertube.com |
Very much
like like YouTube, except moderated for educational settings. |
|
Vimeo |
www.vimeo.com |
Video
sharing site that features HD video content. |
|
Audio
Content |
|
Houndbite |
www.houndbite.com |
Audio
sharing site. Users can upload audio files and share through
embedding. Website is not reliable and is frequently down. |
|
Vocaroo |
www.vocaroo.com |
Very simple
audio recording and sharing site. Users can record their
messages online, then embed those messages into other contexts. |
|
Images |
|
Flickr |
www.flickr.com |
While
individual images from Flickr can be put in placemarks,
slideshows can be created based on tags and searches, then
embedded into placemarks. |
|
SlideFlickr |
www.slideflickr.com |
Another
method for embedding Flickr slide shows into other contexts.
This site allows users to add MP3s as background music. |
|
Photobucket |
www.photobucket.com |
HTML code
for embedding individual photos can be found on the photo pages. |
|
Webshots |
www.webshots.com |
HTML code is
provided for embedding both individual images and slideshows. |
|
Documents |
|
Slideshare |
www.slideshare.net |
Allows users
to upload PowerPoint presentations and embed and share them
online. |
|
Scribd |
www.scribd.com |
Allows users
to upload a variety of documents, including MS-Office files and
PDF files. All of these types can be embedded into Google
Earth. |
|
Multimedia |
|
VoiceThread |
www.voicethread.com |
Allows users
to create multimedia stories incorporating video, audio, images,
and documents. Creations can be embedded into placemarks. |
|
Wayback
Machine |
www.archive.org |
More
commonly known as the Internet Archive, this site is also a vast
repository of searchable multimedia content. Users can also
upload their own content to the site. HTML embed codes are
provided for all of this content. |
Note about
StreamlineSC, Discovery Education, and downloaded content…
Videos from
Discovery Education are provided as part of a subscription service. The
ability to embed this content would violate licensing agreements, so
those HTML codes are not available. You can, however, link to
StreamlineSC videos so that they play in an external browser or
application such as Media Player. You just can’t embed them so that
they play in the placemark itself.
In the latest
versions of Google Earth, embed codes for downloaded files won’t work.
This includes local video and audio files, including those that are
downloaded from Discovery Education and YouTube.
Strategy Three – Create your own content.
Since the placemark
is basically a mini-web page, HTML can be used to include formatted
text, images, and links to external websites. Users can create any
content they wish. Unfortunately, Google Earth does not include a
WYSIWYG editor, so users must either be able to write HTML code, or use
a workaround.
First Method - HTML
Codes
Images:
Online - <img src=“http://www.webpage.com/image.jpg”>
Local - <img src=“c:\some folder\image.jpg”>
You can share local images only if you save your file as a
KMZ file.
Links:
If you put the entire link in the placemark, it will work,
but won’t look as clean. For example, you could copy the following URL
in your placemark to link to an article about Shoeless Joe Jackson…
http://en.wikipedia.org/wiki/Shoeless_Joe_Jackson
However, it would be much cleaner to do the following:
<a
href=”http://en.wikipedia.org/wiki/Shoeless_Joe_Jackson”>Shoeless Joe
Jackson</a>
What appears in the placemark is Shoeless Joe Jackson.
Users can click on the underlined word and be taken to the article.
Text Formatting:
Paragraphs - <p> and </p> as follows:
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
Sed lacinia. Etiam pretium viverra urna. Nam vulputate tellus in lorem.
Aenean a ligula. Nunc arcu. Quisque fermentum est ut felis. </p>
Bold - <b> and </b> - example: <b>Bold Text</b>
Italics - <i> and </i> - example: <i>Italics Text</i>
Underline - <u> and </u> - example: <u>Underlined Text</u>
You can combine HTML tags, but be careful with placement. For example
the following would be acceptable:
<b><i>Bold
Italics</i></b>
Or
<i><b>Bold
Italics</b></i>
However, this is NOT acceptable - <b><i>Bold Italics</b></i>
Second Method – Use
Google Maps
Google Maps DOES
have some HTML editing power. You will need a Google account, then
select “Create a new map.” You can create placemarks using “Rich Text”,
which lets you add links, images, and formatting. Once you’re done,
select “View in Google Earth.”

Third Method – Use
an External Web Editor
External web editors
such as Dreamweaver and FrontPage can be use to create web pages. Copy
the HTML code from the page and paste into your placemark.
There is also an
HTML editor at
www.geopackrat.com. This works best in Internet Explorer.
Fourth Method – Use
a Google Spreadsheet
Google has created a
spreadsheet that can be used to create a set of placemarks. Users can
select from a variety of templates and styles, then add the latitude and
longitude of the locations. The drawback is that you can’t just put the
placemark in Google Earth – you have to know the latitude and longitude
ahead of time
The spreadsheet can
be found here -
http://earth.google.com/outreach/tutorial_mapper.html
Placemark Details
In addition to
content in the placemark, the current view and altitude of the placemark
can also be recorded…

Other Placemark Data:
•
In
addition to location and appearance, the current zoom level, bearing,
and tilt level can be recorded in a placemark.
•
A
“snapshot” can be taken of a current view of a placemark to record these
items.
•
Placemarks can either be clamped to the ground, or can appear above
ground at a specified altitude.
•
Placemarks can have their own icons.
.
Image
Overlays
Image overlays
function just like placemarks, except that an image appears on the
terrain rather than an icon.
