This is a fun game that kids LOVE to play! It provides practice identifying polygons (aligned with the 5th grade Common Core Geometry Standard) according to their properties. The basic idea is that kids put a card on their forehead without looking at it, then they ask yes or no questions to guess what the polygon is. Full instructions for playing the game as well as premade game cards with pictures and words are included in the file. This game is an adaptation of the popular Hedbandz game. I have also included things like lines, line segments, horizontal and vertical lines, etc. to help kids practice their geometry vocabulary. This game is very flexible; it can be played as a center, as a choice activity for early finishers, or as an integrated part of the geometry lesson for practicing concepts. The kids will enjoy playing it for anywhere from 5-30 minutes at a time. I let my students play it in the mornings sometimes when they arrive or at the end of the day while we are waiting for dismissal - they love playing it so much that they do a great job playing correctly even when not closely monitored. With the "suggested questions" cards, they end up asking the right questions to practice their vocabulary and identifying shapes based on their properties.