Janel,
I start day 1 with the classroom rules, scoreboard, & class-yes. Then we practice, practice, practice. Last year(with my 5th graders) I was able to roll out the Big 7 by the end of the first week,& we were awesome Whole Brainers by the middle of the second week.
My advice would be do what's comfortable for you and practice, practice, practice. If it feels like you are moving a bit too fast for your kiddos back up a bit and then continue moving forward at their pace.
I hope this helps.
Tiffany
WBT Intern, 2011-2012