If you're teaching electricity, then we've got the perfect resource for you! This Year 4 What is the Job of a Switch? Investigation Lesson includes an engaging PowerPoint featuring pre and post-assessments to check understanding, a fun task of building an electrical circuit including a switch to investigate what difference open and closed switches make, as well as a teaching sequence about switches. All you need to do is make sure the bulbs work before the children start their investigation! Download now!