Powerpoint includes the rules for identifying significant figures as well as the rules for multiplying, dividing, adding and subtracting. Usually I start with an activity or demo on accuracy/precision so that they understand the purpose of significant figures. Also, if you have technology at your disposal, I like to upload the powerpoint into the Nearpod application and add several formative assessment slides. As I present each slide students copy down the rule into their ISN, then practice the rule.
Key Vocabulary: Significant Figures, accuracy, precision, SI units, measurements