Choose a topic. Aim the language and content at the age group for which you are producing the screencast, whether your target audience consists of fifth graders, or college students.
Create a storyboard. Sketch the items you wish to accomplish in the screencast. Make use of Internet templates, such as those on the School Library Journal website.
Write a script for your presentation. Include all points you wish to include in the video.
Study your script thoroughly. Seek to remember concepts rather than attempting to memorize it verbatim. Whether you choose to narrate the presentation yourself or choose someone else to do so, you will still have to know your material so you can describe it to your audience or to the one you are choosing to narrate it for you. If you want someone else to do it, select someone with a voice that is appropriate towards the age group you wish to reach. An older woman with a soft, gentle voice, for example, may be appropriate for smaller children.
Prepare your technology. This is especially important if you wish to include a slide show, or PowerPoint, as part of your screencast. Make sure that it works, and ensure that it is at the right place where you want it to start at the time you want to begin the presentation.
Test all of your equipment--the video recording equipment, the software and the microphones to ensure that they are all in working order.
Perform a practice run prior to recording. Identify any deficiencies before the actual filming and recording takes place.
Press "Record." Don't be afraid of mistakes, you can edit them later.
Edit your work. Delete all the um's, ers, ahs or instances of deep, audible intakes of oxygen.
Add title, end credits and, if your software permits it, appropriate captions and a table of contents, if your particular software permits it.
Select a hosting medium, such as Screencast.com or Youtube, from which you and others can view your screencast. Upload your presentation on one--or all--of these sites.