This activity is geared toward helping students learn to use mathematical language, a key element of the Common Core. In it, they practice using locational words such as “next to” or “under” to describe a shape they have designed out of pattern blocks. The “twist”? The partner has to build the shape based on those verbal directions—but instead of an exact replica—the partner needs to “flip” or “reflect” the image as described by the designer. Perfect for spacial reasoning, reviewing the con