I used this for a college statistics review study session for learning about standard deviation, Z scores, and the Normal Model. You can use this to review how to find a Z score, an observation, and the Normal Model using Harry Potter terms and examples! Slideshow includes 1 overview of how to calculate a Z score with the definition, 5 examples, and 1 overview of the normal distribution model via the 68, 95, 99 percent rule.