anyone know what game/app are this

[ipos]

the chess game shown at 0.18. followed by the chalkboard at 0.24
thanks guys.

http://www.youtube.com/watch?v=_5i1Dyj5k1A&feature=player_embedded#!

 

[peelers]

the chess game shown at 0.18. followed by the chalkboard at 0.24
thanks guys.

http://www.youtube.com/watch?v=_5i1Dyj5k1A&feature=player_embedded#!

that t chest HD

http://itunes.apple.com/us/app/t-chess-pro/id295445501?mt=8

mathboard

http://itunes.apple.com/us/app/mathboard/id373909837?mt=8

 

[ipos]

that t chest HD

http://itunes.apple.com/us/app/t-chess-pro/id295445501?mt=8

mathboard

http://itunes.apple.com/us/app/mathboard/id373909837?mt=8

another question, what is the app used at 0:05
thanks buddy!