Number Expanders - Place Value Strips, Set of 8The Set of 8 Number Expanders is an innovative learning tool that visually demonstrates the concept of place value, allowing students to explore numbers from 0 to 9999. These number lines expand to reveal the names of thousands, hundreds, tens, and ones, but can also be folded to display only numerals or partial sections, providing flexible teaching options. Embedded magnets enhance the folding mechanism, and the write on wipe off surface invites