There is a program quite easy to use with code.org that allows a student to code.  It is quite interesting.  From what I can see, it teaches computational thinking.  Students have success with it and it can be integrated within the mathematics curriculum.  Students would love playing the games.   These are games free of violence.

Although I like coding very much,  I prefer Hopscotch.  Hopscotch allows students to be more creative.  They can code about anything they want, with the level of difficulty they want.  They also learn by playing.  Hopscotch provides an environment where students can learn from each other, by sharing projects and also by learning from teachers.  They can also learn skills from the skills bank.  Students are driven and have more freedom.  They can investigate what they want from learning to draw to the most pressing science and environmental concepts.  These two programs were done with Hopscotch.