To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Motivating! There are some really interesting stories in these cards. I usually tell my students that multiple choice questions will narrow to two possible answers. Then, they must decipher the BEST answer. The choices to these short stories follow this strategy. This deck includes a lot of non-fiction on many interesting topics. My students beg to play this game!