This manipulative helps students understand how numbers are written and read, up to 999.
Instructions on how to make and use are included. In addition, there are photos showing different numbers and how they are displayed with the sliding strips.
It is recommended that cover paper is used for strength. Teachers will need to cut slots, with a 'Stanley' knife or blade, for the strips to slide through.
By using this, students will be less likely to think that 325 is written as 三二五.