Students will each be assigned a rational number (integer, fraction or decimal) and the class will need to place themselves in order. I usually have my students change their own fractions to decimals if they are given a fraction and then they have to put themselves in order from least to greatest. The great part is that if you have a smaller class size you do not need to use all of the numbers. The cards are in order in the file so make sure you mix them up before the activity. Glue them to index cards and laminate if you want them to last. There are 30 cards in this set.