Several free screen capture software and web tools

http://screencast.com/t/xJ37BsLvUt28

Advantages:

• video and audio recoading, easy to illustrate
• authentic listening material for English learning

Application

for teachers                

• assessment
• feed back both for individual and class
• teaching video making

for students:

• peer review to evaluate their own works
• pressentation (including  book or branch story reading together with mixbox, or draw and describe the picture or design through composition or oral language)
• exploration and evaluation of web tools
•  film dubbing
• students' feedback and expectation, or responses to the teacher's comment

Limitation:

• the size of the video may get too big and difficult to send; expression has to be done
• the teacher could give too much feed back and lost of control

Other similar tools:

Screencast-o-matic

• web tool, create a account
• size adjustable
• web camera can be used at the same time
• free 15 minutes time limit
• upload to YouTube, download, flash windows media player

Screen Jelly

• web tool
• 3 minutes limitation
• sign with face book account
• tweet it , embeddable, face book, but not downloadable
• only record whole screen

Screen Castle

• web tool
• no sign in, no account creating at all
• simple to use
• but not dnownloadable

Screenr

• web tool
• tweet, embedalbe
• 5 minutes limit
• sign in with tweeter account

Jing

• have to down load the software
• size adjustable
• format can be chosen
• mark can be made on the screen
• paste the address automatically after sending
• professional edition very cheap