This slides file is designed to introduce Roman Numerals to students ages 6 to 9 in a Lower Elementary Montessori classroom. When giving this presentation, I stop to talk about the placement of the letters and show how the letters ask us to do subtraction and addition. (VI is the same as 5 plus 1) The latter slides are randomized to quiz the students informally to see if they understand. The reveal comes directly after each roman numeral slide for control of error.