This is a great way to scaffold learning of the base-ten system while students make sense of it on their own. It's a dry-erase board (cardstock and laminate) that students can use to build their confidence and memory of the place value chart. Students can show regrouping skills, add, subtract, etc. all on this dry-erase board. Most of all, it features comparisons on the top and bottom of the place value chart to emphasize the standard 4.NBT.1. The lesson objective is written on the board for yo