Teaching place value can be a tricky business and these darts have to be one of the simplest solutions! Bright colors help to separate ones, tens, hundreds and thousands on perforated card stock. If you are explaining the number 4,865 you will start with the 4,000, overlay the 800, then the 60, and finally the single 5 on the very top. When you separate them again, your student can see the values of each number. Ta da!