Addition Smart Poly Busy Board helps children learn their addition tables from 1 to 12. One side of the colorful, dry-erase board shows addends and their sums in rows grouped by the first number. The other side showcases a full addition table along with a worksheet column where students can write in an addend and then the resulting answer. Both sides include blank sections for practice and notes. Perfect for reusable learning anywhere, the write-on/wipe-off surface lets you write directly on the board and quickly wipes clean for your next session. Use with dry-erase or water-based markers and washable crayons. No lamination is needed. Heavy-duty cardboard coated with poly material is designed to be long-lasting, easy to clean and water-resistant for many years. Carry easily with the die-cut handle. Durable board includes a black, dry-erase marker (fine point).Addition Smart Poly Busy Board helps children learn their addition tables from 1 to 12. One side of the colorful, dry-erase board shows addends and their sums in rows grouped by the first number. The other side showcases a full addition table along with a worksheet column where students can write in an addend and then the resulting answer. Both sides include blank sections for practice and notes. Perfect for reusable learning anywhere, the write-on/wipe-off surface lets you write directly on the board and quickly wipes clean for your next session. Use with dry-erase or water-based markers and washable crayons. No lamination is needed. Heavy-duty cardboard coated with poly material is designed to be long-lasting, easy to clean and water-resistant for many years. Carry easily with the die-cut handle. Durable board includes a black, dry-erase marker (fine point).