This Google Slide presentation has 21 slides total (2 direction slides, 2 options for the opening classroom home slide, 15 designed classrooms plus 2 untitled classrooms at the end).This is perfect for Elementary, homeschool, possibly some middle school, and could also be used for PreK (I do have a younger version in my shop if you prefer). There are several subjects, which include math, language arts, writing, geography, science, botany, zoology, history, reading/library, arts & crafts, mus