After uploading your video file at TeacherTube.com:

1. Go into edit mode on your workspace by clicking the "Edit" tab.
2. Click the "Insert Plugin" button.
3. Choose "TeacherTube video" from the Video & Photo category.

   

4. Paste in the embed code provided to you by TeacherTube.
5. Check the box in the lower-left corner to authorize the Javascript.
6. Click "Preview," then "OK," and, finally, "Save" your workspace page.