Clock activity:tv.alterna.Clock A simple clock to learn to read time. Different views are available (Analog, Digital, Nice, Talking clock). Consistent colors help children learn and remember. Now with Time To Speak (TTS).
Scratch:edu.mit.media.ScratchActivity An easy-to-learn, multimedia programming language. Snap together colorful command blocks to create interactive animations, stories, and games, then share your creatiions on the Scratch website.
Screencast:org.laptop.Screencast Screencast is a video screen capture utility. It is based on Recordmydesktop by John Varouhakis. It captures the screen to a video file which is in Ogg-Theora-Vorbis file format.