Sorry, I am late to this conversation in regards to Loop, or 5th and 6th grade, worship.
In our Loop environment, we do video worship. Insider Information: Right now, our Media Design team is producing the new Loop live worship which has songs from our, soon to be released, Life Church Worship album designs specifically for students.
I can't tell you which approach is the best, I think we have tried lots of different approaches and all have pros and cons. It will depend on your church and your goals.
We have taken students into the auditorium. We have shown Hillsong United Worship. We have created music videos and we have created worship videos that are only words on the screen. We have tried live bands or acoustic sets at a couple campuses. Once again, we have tried several different ways.
Our current approach is to show students worshipping with a live band with "how to worship" segments. 3 reasons why we do this...
1. Loop is a transition ministry. The next step is to transition to the weekend experience (on the weekend) and to Switch, our student ministry (on Wednesday nights). Both of these environments have live bands. Therefore, we want students to become acclimated to a live band.
2. We want students to see what worship can look like. Have you heard the saying, more is caught than taught? We have too. We want students to see other students worship. This is a form of positive peer pressure and it is also a way to show what worship can (and does) look like.
3. The teaching segments allow us to explain why and set expectations. For example, they may see kids raising their hands in the video, we want to explain why and what it means. This teaching allows us to lead students to worship, not simply play a game of Simon Says: Worship edition.
If you have other ideas, we would love to hear them.