The idea for this lesson comes from the television show 'Shark Tank' in which students will be required to design a sales pitch for a really bad invention. After careful scaffolding of the task and planning, students present their sales pitch to the rest of the class and see how many they have convinced to buy their item.
All the materials you need for this lesson are attached in the document!
I have used this lesson numerous times and it is ALWAYS a hit. Kids have so much fun and barely realising they are learning about all the important features of a persuasive piece of writing.