This is an easy lesson to do at the beginning of the year. The PowerPoint includes 7 pictures of teachers breaking safety rules in the lab. Sometimes I'll go through all 7 as an entire class with students volunteering to share which rules are being broken.
Another way I've done this in the past is to print out the photos and have students write down the rules being broken in small groups. Then, I post the photo and student work on the wall and leave it up the entire year to remind students what type of behavior is expected when doing a lab.
Posted by: MsParadise