Camtasia is a screen and video recording software. It is easy to use and helps you create professional videos by recording your screen movements and actions, or importing HD video from a camera or
Camtasia software requires a license but is inexpensive. Its available for Mac and Windows and enables you to share videos on most devices.
Many of the TaLIC videos are made using Camtasia.
This is a commercial product and you must have a licence to use it. There are educational discounts if you are going to use it for teaching or learning purposes. More information can be found at the TechSmith website.