This interactive Google Slides student activity guides students through calculating percentages mentally. It is broken down into two sections (2 separate lessons: Lesson 1 is 10%, 25% and 50%, Lesson 2 is 1%, 5%, 15%) and includes an input video lesson for each, as well as interactive internet games, basic practice, and real life problem solving. When I used this resource I broke it down into two separate slide decks and taught them separately. If you are introducing the topic, I suggest breakin