I've found my favorite Friday Fun Day is a review day using Ninja Belts as my theme. Many music teachers use karate belts as a way for students to pass off tunes and achieve a certain level of playing. When I taught small elementary string classes, I used the belt system and tied yarn on the scrolls of instruments and all of that. While I feel it can be a good way to motivate students to practice certain exercises, the karate belt system can be leveraged in other ways. I use karate belts as a review tool and self-assessment tool. I adjust and change the belts as students progress. I don't give out any physical object - no real belts. There's nothing I have to track or pass-off. Students help each other and work hard just to achieve 'black belt' status.
Here's how I do it...
I begin class with a short video showing some awesome ninja skills or a clip from 'America's Ninja Warrior' showing how people train and work to pass the 'obstacles' in the course. Then I tell them we're going to see if students can pass each 'obstacle' in our training ground.
I made slides with each skill I want students to review. Each slide contains a belt color and we rehearse from the simplest skill to the most advanced. We rehearse some slides as a class...and some slides students practice themselves for a minute or so (all at once). Sometimes I give students a worksheet where they can track either progress as we rehearse/review the skills on each slide. Sometimes students assess themselves and let me know with a simple thumb scale or finger scale how they are doing. Other times I have stand partners assess each other and provide feedback.
I've done this type of review twice this school year...and both time my students were engaged, focused, working HARD, and thriving. It's easy to prep...helps rehearsals stay relevant and meaningful...and it's fun! When students notice and understand how much they are progressing, they have fun and they are motivated to keep working.