Bulletin Board: Big Numbers 0-30! - Extra large display that includes 30 big, colorful numbers 1 through 30. Each big number card comes with the number word and a counting group of stars. Eight simple math symbols are also included in the set. Demonstrate simple counting or beginning math problems. Cutting the cards apart can also create numerous matching activities. Have the children match the correct numeral, number word and counting group together. Write-on, wipe-off surface!