I just had to come on this forum and tell everyone how wonderful KenKen has been for both my students and myself.
I start my class off with a KenKen on the front board. As my students come into class I have them work on the puzzle quietly at their desks. After a few minutes I call a student to the board and have them fill in one of the blocks. I then ask the student to explain their decision-making processes to the class. After the student explains themselves they return to their seat and I invite another student to the board. This student then has the ability to change the previous student's work (if desired) and fill in another block.
This is a great way to get my 7th grades involved and focused at the beginning of class.
