This quick guide describes how to get and use KA-Stick, the self-contained offline version of the Khan Academy on a Stick package to runs on Windows computers (For the instructions for the Raspberry Pi version go to the KA-Pi site).
For the Spanish version, see the Spanish version How-To page.
You'll need a 16 GB USB Flash Drive (you may already have one, or many of them.., so in this case just skip this step..) to write to it the KA-Stick package content. If you need to buy one try to get one with a fast read speed. There are lots of brands and prices, but name brands are always recommended. Also, usually the cheapest ones are very slow. Of course, if your computers support USB 3.0, get USB 3.0 drives.
The KA-Stick content fits in a 16GB drive, but of course you can copy it to a larger capacity one, on any other external storage type.
The whole KA-Stick content is packaged and compressed in just one file to download. The file is in the .zip format.
You are going to download it by FTP:A very good and free FTP client for Windows, Mac and Linux is FileZilla ( filezilla-project.org). It has very important features (Keep-alive, auto reconnect) for downloading very large files like this.
Sample FTP login using FileZilla:
Once connected you'll see the files in the server available for FTP download. Go to the "ka_stick" folder and drag the KAOS_WAMP_16_20131202.zip file to a folder in your computer. Example using FileZilla on Windows:
The FTP download will start.
WARNING: This is a very large file, which may take a long time to download.
Important: if you want to verify the integrity of the very large downloaded file, which is strongly recommended to make sure that it has arrived intact during the long download process, this is its MD5 checksum: 93e0e95b2557b39861795cb41c099754
To verify the MD5 checksum of the downloaded file you can use in Windows a free tool like WinMD5Free (www.winmd5.com). Sample screenshot:
After downloading the large package file to your computer you have to unpack it, with a tool like 7-Zip or WinZip on Windows. 7-Zip is a great tool, open-source and free (www.7-zip.org).
As an example, here are screenshots from 7-Zip on Windows selecting and unpacking this large zip file:
As it is a very large file the above step may take a long time.
When the whole extraction of the zip file is completed, you will end up with the whole structure of the "Khan Academy on a Stick" package on your local drive.
Plug a 16 GB USB flash drive (stick), or other external storage device with enough capacity, into a USB port in your computer. In Windows this will show up as a new drive letter (like E: or D: ) in Windows Explorer.
Using Windows Explorer, select and drag the new downloaded content, from the location where you extracted it to in the previous step, to the USB flash drive. This will make a copy of the all the KA-Stick content on the USB memory stick, that you can use to take or ship anywhere. This copy operation may take a long time also, as there are lots of files to copy.
Let's review in detail those scenarios below
In this scenario a person plugs the KA-Stick to a personal computer and with Windows Explorer goes to the location of the just plugged drive (like F: in this example):
The above screenshot shows the structure of the KA-Stick package.
To start the KA-Stick server just double click on the KAOS-START.exe file, which will open the "mowes" window in your desktop, as in here:
The server will also at this point automatically launch the default web browser in the PC, connecting to the now running web server in it, and launching in the browser the Khan Academy on a Stick content:
From there the student can navigate the Khan Academy Math and Science libraries and play their video lectures.
Back view:
Or you can just you a phone connected to the same wi-fi network created by the wireless router and use a mobile app to scan the local network and find out the connected computers . Just see the details of the device with the name of the computer you are running KA-Stick. Make note of the IP address, 192.168.0.102 in this example. (Using the Scany iPhone app for this screenshot on the right).
Once you have have downloaded the KA-Stick package, based on your on-the-ground needs, there are other ways the Khan Academy content can be used. Here are just some examples:
This will launch the PC default browser with the Khan Academy on a Stick main page:
This will launch the Mac browser with the "Khan Academy on a Stick" main page:
Then you can navigate and play the whole Khan Academy content from the browser.
This KA-Stick package content uses HTML 5 video in mp4 format using H.264 video and AAC audio codecs. So you need to use a modern HTML 5 compatible browser version that also supports this video format.
You can see a list of supported browsers here The ones under the H.264 column and highlighted in Green are very likely to play fine the videos in this distribution.
For instance, as per today, on Windows Internet Explorer 9+, Chrome and Firefox 21 or above it works great. On the Mac, Safari and Chrome. On iOS devices (iPads, iPhones, iPod Touch) everything plays great with the OS Safari: the videos can also be expanded full screen, rotated, etc. On Linux, Chrome and Konqueror, on Android, well, it is a long story.., but please try yourself (there are at this time thousands of combinations of hardware-Android software versions out there. On some quality ones they play great for instance with Firefox for Android.)
Please do not hesitate to contact me should you have problems to download, expand or use Khan Academy on a Stick. You can contact me as described in the About page and I'll be happy to respond.