An entire number curriculum built into a spinner. Teach your students to recognize, write, and build numbers from 0 to 9,999. Start with the Ones spinner and watch your students work their way up to the Tens, Hundreds, then Thousands. Each new spin creates a new number for students to identify, write, or build with manipulatives. When your students are ready for decimals, just place a penny between spinners and suddenly you can teach decimal place value in tenths, hundredths, thousandths, and ten thousandths. Also works great to teach rounding off. Students spin a number and round it off to the nearest 0, 10, 100, or 1000. Multi-functional and multi-fun.