Hook the Reader I think to introduce hooks in a story the student should have the option of playing with writing with different hooks. To do this you could challenge them to use different strength levels of hooks by inviting them to go "fishing". Minnow=little hook, Bass Fish=medium hook, Shark=huge hook. Could be done with a sticky hand and fish on the wall. :)
This chart goes along exactly with what Fletcher discusses in chapter 10. I like this idea for giving students the different ways they can start a story. It would be good to start with one and then have them practice that day continue on each day. This way they students can practice the different methods.
Free Download ~ Characteristics of a Good Hook | This Reading Mama (with great directions for teaching writing hooks from children's authors)