It takes time and a LOT of thought to identify a great anchor for a unit. Honestly, I spent probably two hours coming up with those ideas (and that included a lot of online browsing – aka stealing others’ ideas!), and I’m not even sure I like them all. Don’t think you have to get it perfect the first time and don’t wait for the perfect anchor to start using anchoring phenomena! This is something that will evolve in your units over time, and you shouldn’t be afraid to change your anchor each time you teach a unit (until you get one you just love!). Just remember, a decent anchor is better than no anchor, and the more you practice – the better you’ll get.