18 colorful interactive slides with guided work to get the big picture of 3 places and infinite periods. Students practice identifying three places and families/periods. DRAG & DROP, Read & Write activities to understand the pattern of 100,10,1. Introduction to adjective-noun pattern simplifies reading numbers.(Math is a second language!!) On-screen practice that can be done over and over with observation page and "What do you know?" self-check/quiz.