Introduce the materials and tools - show off the materials in the students' kits and the function of each tool.
Show a smattering of EL projects from around the web to get your students inspired!
If you brought extra EL materials (other types of inverters, EL panel, etc.), show how they work. The sound-activated inverter always induces some "ooo"s from the class.
Describe how the whole circuit will work- what EL wire is made from and how it lights up, the inverter's step up to AC, and the safety precautions to be taken during construction.
Solder practice - have each student make a practice EL solder joint with scrap materials. As they take turns with the soldering iron, the rest of the students can start planning their project design.
Demonstrate sewing and gluing techniques - either on some sample material or using a students' project as an example.